Bear Creek Arsenal Uppers Gun Parts

(147 deals total)

This BCA AR-15 complete 5.56 NATO rifle length upper has a 16" M4 contour barrel with a parkerized finish, and features a 1:7 twist rate, with a carbine length gas system. It includes a 15 1/4" MLOK rail, an M4 flat-top billet upper receiver, a BCA bolt carrier group, a flash hider, and a rear charging handle. This 5.56 NATO upper is compatible with any mil-spec AR-15 lower. This has the new handguard. SKU 937N-UA556CM41617PBUR-15M3 Weight (lbs) 6.000000 Magazine Capacity N/A Length 16 Profile M4 Contour Twist 1:7 Finish Parkerized Material 4150 Chrome Moly Vanadium

This BCA AR-15 complete dual charging 350 Legend rifle length upper has a 16" M4 Contour barrel with a 416R stainless steel finish and features a 1:16 Twist Rate with a Carbine length gas system. It includes a 15" MLOK handguard, an M4 flat-top forged upper receiver, a BCA Bolt Carrier Group, a flash hider, a right-side charging (Gen 2, patent pending) handle, and a rear charging handle. This 350 Legend upper is compatible with any mil-spec AR-15 lower. More Information SKU 9672N-UADCH350LCM416116SS-15M3 Weight (lbs) 6.000000 Magazine Capacity N/A Length 16 Profile M4 Contour

This BCA AR-15 complete .223 Wylde rifle length upper has a 18" SOCOM mid-weight barrel with a 416R stainless Black Nitride finish, and features a 1:8 twist rate, with a mid-length gas system. It includes the new 15" MLOK rail, an M4 flat-top billet upper receiver, a BCA bolt carrier group, a flash hider, and a rear charging handle. This .223 Wylde upper is compatible with any mil-spec AR-15 lower. More Information SKU 8988N-UA223WMMW1818MBUR-15M3 Weight (lbs) 5.800000 Magazine Capacity N/A Length 18 Profile SOCOM Twist 1:8 Finish Black Nitride Material 416R Stainless Steel

This BCA AR-15 complete 300 Blackout rifle length upper has a 16" bear claw fluted heavy barrel with a 416R stainless steel with black nitride finish, and features a 1:8 twist rate, with a carbine length gas system. It includes a 11.5" MLOK rail, an M4 flat-top billet upper receiver, a BCA bolt carrier group, a flash hider, and a right-side charging (Gen2) handle (patent protected). This 300 Blackout upper is compatible with any mil-spec AR-15 lower. SKU 535N-UASCH300CHB1618SSBCF-12M3 Weight (lbs) 5.500000 Magazine Capacity N/A Length 16 Profile Heavy Barrel Twist 1:8

This BCA AR-15 complete .223 Wylde rifle length upper has a 16" M4 contour barrel with a parkerized finish, and features a 1:8 twist rate, with a carbine length gas system. It includes a 15" MLOK rail, an M4 flat-top forged upper receiver, and a flash hider. This .223 Wylde upper is compatible with any mil-spec AR-15 lower.  More Information SKU UHA613N-223WCM41618P-15M3 Weight (lbs) 4.800000 Magazine Capacity N/A Length 16 Profile M4 Contour Twist 1:8 Finish Parkerized Material 4150 Chrome Moly Vanadium Thread Pitch 1/2 x 28 Caliber .223 Wylde Feed Ramp M4 Feedramp

This BCA AR-15 complete 5.56 Nato rifle length upper has a 16" M4 contour barrel with a 416R stainless finish, and features a 1:8 twist rate, with a carbine length gas system. It includes the new 11.5" MLOK rail, an M4 flat-top billet upper receiver, a BCA bolt carrier group, a flash hider, and a side charging (Gen 2) handle (patent pending). This 5.56 Nato upper is compatible with any mil-spec AR-15 lower. More Information SKU 229N-UASCH556CM41618SS-12M3 Weight (lbs) 5.100000 Magazine Capacity N/A Length 16 Profile M4 Contour Twist 1:8 Finish Stainless Material 416R Stainless Steel

This BCA AR-15 complete 7.62x39 upper has an 18" heavy barrel with a parkerized finish, and features a 1:10 twist rate, with a mid-length gas system. It includes a new style 15" MLOK rail, an M4 flat-top billet upper receiver, a BCA bolt carrier group, a flash hider, and a side charging (Gen 2) handle (patent pending). This 7.62x39 upper is compatible with any mil-spec AR-15 lower. More Information SKU 690N-UASCH762MHB18110P-15M3 Weight (lbs) 5.850000 Magazine Capacity N/A Length 18 Profile Heavy Barrel Twist 1:10 Finish Parkerized Material 4150 Chrome Moly Vanadium

This BCA AR-15 Complete 350 Legend rifle length Upper has a 16" M4 Contour barrel with a Parkerized finish, and features a 1:16 Twist Rate, with a Carbine length gas system. It includes a 15 1/4" MLOK Rail, an M4 flat-top forged upper receiver, a BCA Bolt Carrier Group, a Flash Hider, and a rear charging handle. This 350 Legend upper is compatible with any mil-spec AR-15 lower. This has the new handguard. More Information SKU 513N-UA350LCM416116P-15M3 Weight (lbs) 5.300000 Magazine Capacity N/A Length 16 Profile M4 Contour Twist 1:16 Finish Parkerized

This BCA AR-15 complete .300 Blackout rifle length upper has a 16" black wolf fluted heavy barrel with a 416R stainless with black nitride finish, and features a 1:8 twist rate, with a carbine length gas system. It includes the new 11.5" MLOK rail, an M4 flat-top forged upper receiver, a BCA bolt carrier group, a flash hider, and a rear charging handle. This .300 Blackout upper is compatible with any mil-spec AR-15 lower. More Information SKU 340N-UA300CHB1618SSBWF-12M3 Weight (lbs) 5.500000 Magazine Capacity N/A Length 16 Profile Heavy Barrel Twist 1:8 Finish Stainless

This BCA AR-15 complete 5.56 Nato rifle length upper has a 16" M4 contour barrel with a parkerized finish, and features a 1:8 twist rate, with a carbine length gas system. It includes the new 15" MLOK rail, an M4 flat-top forged upper receiver, a BCA bolt carrier group, and a rear charging handle that can be charged left or right handed. This 5.56 Nato upper is compatible with any mil-spec AR-15 lower. More Information SKU 8989N-UA556CM41618P-15M3LHRH Weight (lbs) 5.300000 Magazine Capacity N/A Length 16 Profile M4 Contour Twist 1:8 Finish Parkerized

This BCA AR-10 complete 6.5 Creedmoor rifle length upper has a 20" 416R stainless heavy barrel, and features a 1:8 twist rate, with a rifle length gas system. It includes a 15" MLOK Split Rail, an M4 flat-top forged upper receiver, and a flash hider. This 6.5 Creedmoor is compatible with 1st gen DPMS low profile lowers.  More Information SKU UHA9250N-65CRHB2018SSFUR-15MSR Weight (lbs) 8.250000 Magazine Capacity N/A Length 20 Profile Heavy Barrel Twist 1:8 Finish Stainless Material 416R Stainless Steel Thread Pitch 5/8 x 24 Caliber 6.5 Creedmoor Feed Ramp AR-10 Feedramp

This BCA AR-10 complete 6.5 Creedmoor rifle length upper has a 20" 416R Stainless Steel heavy barrel, and features a 1:8 twist rate, with a rifle length gas system. It includes a 15" MLOK Rail, an M4 flat-top billet upper receiver, and a flash hider. This 6.5 Creedmoor is compatible with 1st gen DPMS low profile lowers. More Information SKU UHA531N-SCH65CRHB2018SS-15MSR Weight (lbs) 8.250000 Magazine Capacity N/A Length 20 Profile Heavy Barrel Twist 1:8 Finish Stainless Material 416R Stainless Steel Thread Pitch 5/8 x 24 Caliber 6.5 Creedmoor Feed Ramp AR-10 Feedramp

This BCA AR-15 Complete 350 Legend rifle length upper has a 20" heavy barrel with a Parkerized finish, and features a 1:16 Twist Rate, with a Carbine length gas system. It includes a 15" MLOK Rail, an M4 forged receiver, and a Flash Hider. This 350 Legend upper is compatible with any mil-spec AR-15 lower. More Information SKU UHA908N-350LCHB20116P-15M3 Weight (lbs) 5.000000 Magazine Capacity N/A Length 20 Profile Heavy Barrel Twist 1:16 Finish Parkerized Material 4150 Chrome Moly Vanadium Thread Pitch 5/8 x 24 Caliber 350 Legend Feed Ramp .300 Blackout Feedramp Flutes Non-fluted

This BCA AR-15 complete .223 Wylde rifle length upper has an 18" heavy barrel with a 416R stainless finish, and features a 1:8 twist rate, with a mid-length gas system. It includes a 15" MLOK rail, an M4 flat-top forged upper receiver, and a flash hider. This .223 Wylde upper is compatible with any mil-spec AR-15 lower. More Information SKU UHA188N-223WMHB1818SS-15M3 Weight (lbs) 6.000000 Magazine Capacity N/A Length 18 Profile Heavy Barrel Twist 1:8 Finish Stainless Material 416R Stainless Steel Thread Pitch 1/2 x 28 Caliber .223 Wylde Feed Ramp M4 Feedramp Flutes Non-fluted

This BCA AR-15 complete 5.56 NATO pistol length upper has a 10.5" M4 contour barrel with a 416R Stainless Steel finish, and features a 1:8 twist rate, with a pistol length gas system. It includes a 9.5" MLOK rail, an M4 flat-top forged upper receiver, a BCA bolt carrier group, a flash hider, and a rear charging handle. This 5.56 Nato upper is compatible with any mil-spec AR-15 lower. More Information SKU 9466N-UA556PM410.518SS-10M3 Weight (lbs) 3.500000 Magazine Capacity N/A Length 10.5 Profile M4 Contour Twist 1:8 Finish Stainless Material 416R Stainless Steel

This BCA AR-15 complete .450 Bushmaster rifle length upper has a 16" heavy barrel with a parkerized finish, and features a 1:24 twist rate, with a carbine length gas system. It includes a 15" MLOK rail, an M4 flat-top forged upper receiver, and a flash hider. This .450 Bushmaster upper is compatible with any mil-spec AR-15 lower. More Information SKU UHA650N-450CHB16124P875-15M3 Weight (lbs) 5.800000 Magazine Capacity N/A Length 16 Profile Heavy Barrel Twist 1:24 Finish Parkerized Material 4150 Chrome Moly Vanadium Thread Pitch 5/8 x 32 Caliber .450 Bushmaster

This BCA AR-15 complete 5.56 Nato rifle length upper has a 16" M4 contour barrel with a parkerized finish, and features a 1:8 twist rate, with a carbine length gas system. It includes a 15 1/4" MLOK rail, an M4 flat-top billet upper receiver, a BCA bolt carrier group, a flash hider, and a right-side charging (Gen 2) handle (patent pending). This 5.56 Nato upper is compatible with any mil-spec AR-15 lower. This has the new handguard. More Information SKU 912N-UASCH556CM41618P-15M3 Weight (lbs) 5.300000 Magazine Capacity N/A Length 16 Profile M4 Contour Twist 1:8 Finish Parkerized

The BC-8 is the world's first high-value, high-performance AR-styled long action semi-automatic rifle. Built with premium materials and precision rifling techniques, the HuntMaster line is unmatched in accuracy and performance. Now is the time to add a timeless tool to your arsenal; now is the time to experience the power of the HuntMaster.

This BCA AR-15 complete .223 Wylde pistol length upper has a 10.5" M4 contour barrel with a 416R stainless finish, and features a 1:7 twist rate, with a carbine length gas system. It includes a 9.5" MLOK rail, an M4 flat-top billet upper receiver, a BCA bolt carrier group, a flash hider, and a right-side charging (gen 2) handle (patent pending). This .223 Wylde upper is compatible with any mil-spec AR-15 lower. More Information SKU 579N-UASCH223WCM410.517SS-10M3 Weight (lbs) 3.500000 Magazine Capacity N/A Length 10.5 Profile M4 Contour Twist 1:7 Finish Stainless

This BCA AR-15 Complete 350 Legend pistol length upper has a 10.5" heavy contour barrel with a parkerized finish, and features a 1:16 Twist Rate, with a pistol length gas system. It includes a 9.5" MLOK rail, an M4 flat-top forged upper receiver, a BCA Bolt Carrier Group, a Flash Hider, and a rear Charging Handle. This 350 Legend upper is compatible with any mil-spec AR-15 lower. More Information SKU 9772N-UA350LPHB10.5116P-10M3 Weight (lbs) 4.800000 Magazine Capacity N/A Length 10.5 Profile Heavy Barrel Twist 1:16 Finish Parkerized Material 4150 Chrome Moly Vanadium

Bear Creek Arsenal Uppers under $200

This BCA AR-15 complete DUAL Charger 5.56 Nato rifle length upper has a 16" M4 barrel with a parkerized finish, and features a 1:7 twist rate, with a carbine length gas system. It includes a 15" MLOK rail, an M4 flat-top billet upper receiver, a BCA bolt carrier group, a flash hider, and a right-side charging (Gen2) handle (patent protected) and rear charge handle. This 5.56 Nato upper is compatible with any mil-spec AR-15 lower.  More Information SKU 9713N-UADCH556CM41617P-15M3 Weight (lbs) 5.300000 Magazine Capacity N/A Length 16 Profile M4 Contour Twist 1:7 Finish Parkerized

This BCA AR-15 complete 7.62x39 rifle length upper has a 16" 416R stainless steel heavy barrel, and features a 1:10 twist rate, with a carbine length gas system. It includes a 15" MLOK rail, an M4 flat-top billet upper receiver, a BCA bolt carrier group, a flash hider, and a right-side charging (Gen2) handle (patent protected). This 7.62x39 upper is compatible with any mil-spec AR-15 lower. More Information SKU 9014N-UASCH762CHB16110SS-15M3 Weight (lbs) 5.750000 Magazine Capacity N/A Length 16 Profile Heavy Barrel Twist 1:10 Finish Stainless Material 416R Stainless Steel

This Bear Creek Arsenal AR-15 Complete 7.62x39 rifle length upper has a 16" heavy barrel with a parkerized finish, and features a 1:10 twist rate, with a Carbine length gas system. It includes a 11.5" MLOK rail, a M4 flat-top billet upper receiver, a BCA Bolt Carrier Group, Flash Hider, and a right-side charging (Gen2) handle (patent protected)). This 7.62x39 upper is compatible with any mil-spec AR-15 lower. More Information SKU 9999N-UASCH762CHB16110P-12M3 Weight (lbs) 5.750000 Magazine Capacity N/A Length 16 Profile Heavy Barrel Twist 1:10 Finish Parkerized

This Bear Creek Arsenal AR-15 Complete 7.62x39 rifle length upper has a 16" Cold Hammer Forged heavy barrel with a black nitride finish, and features a 1:10 twist rate, with a Carbine length gas system. It includes a 15" MLOK rail, a M4 flat-top billet upper receiver, a BCA Bolt Carrier Group, Flash Hider, and a right-side charging (Gen2) handle (patent protected). This 7.62x39 upper is compatible with any mil-spec AR-15 lower.  More Information SKU 9146N-UASCH762CHB16110MHF-15M3 Weight (lbs) 5.500000 Magazine Capacity N/A Length 16 Profile Heavy Barrel Twist 1:10

This BCA AR-15 Complete 350 Legend rifle length upper has a 18" heavy barrel with a parkerized finish, and features a 1:16 twist rate, with a carbine length gas system. It includes a 15" MLOK rail, an M4 flat-top billet upper receiver, a BCA bolt carrier group, a flash hider, and a right-side charging (Gen 2) handle (patent pending). This 350 Legend upper is compatible with any mil-spec AR-15 lower. This has the new handguard. More Information SKU 569N-UASCH350LCHB18116P-15M3 Weight (lbs) 5.700000 Magazine Capacity N/A Length 18 Profile Heavy Barrel Twist 1:16 Finish Parkerized

Bear Creek Arsenal is a proud provider of a vast selection of guns available to you online. We make it easy for you to browse and select the perfect gun at the perfect price. Filter by platform, caliber, color, and many other critical features, like hammer forged, to find the ideal option for you. If you are passionate about firearms, then Bear Creek Arsenal is the ultimate place for you. We are dedicated enthusiasts with a passion for sharing our affinity for firearms.

This BCA AR-15 complete .223 Wylde rifle length upper has a 18" straight fluted heavy barrel with a 416R stainless finish, and features a 1:8 twist rate, with a mid-length gas system. It includes the new 15" MLOK rail, an M4 flat-top forged upper receiver, a BCA bolt carrier group, a flash hider, and a rear charging handle. This .223 Wylde upper is compatible with any mil-spec AR-15 lower. More Information SKU 8990N-UA223WMHB1818SSF-15M3 Weight (lbs) 6.000000 Magazine Capacity N/A Length 18 Profile Heavy Barrel Twist 1:8 Finish Stainless Material 416R Stainless Steel

This BCA AR-15 Complete Upper has a 16" barrel with an M4 Contour profile, made of 4150 Chrome Vanadium with a Parkerized finish, and features a 1:7 Twist Rate, a Carbine length gas system. More Information SKU 601N-UA223WCM41617P-15M3 Weight (lbs) 5.300000 Magazine Capacity N/A Length 16 Profile Heavy Barrel Twist 1:7 Finish Parkerized Material 4150 Chrome Moly Vanadium Thread Pitch 1/2 x 28 Caliber .223 Wylde Feed Ramp M4 Feedramp Flutes Non-fluted Gas System Carbine Gas Block System 0.750 Charging Style Rear Charging Classification Complete Upper Assembly Platform AR-15

This Bear Creek Arsenal AR-15 Complete 5.56 Upper has a 16 M4 barrel with a parkerized finish, and features a 1:7 twist, with a carbine length gas system. It includes a 15 1/4" MLOK rail, a M4 flat-top forged upper receiver, a BCA Bolt Carrier Group, Flash Hider, and a rear charging handle. This 5.56 upper is compatible with any mil-spec AR-15 lower. This has the new handguard. More Information SKU 501N-UA556CM41617P-15M3 Weight (lbs) 5.300000 Magazine Capacity N/A Length 16 Profile M4 Contour Twist 1:7 Finish Parkerized Material 4150 Chrome Moly Vanadium Thread Pitch 1/2 x 28

This BCA AR-15 complete 6.5 Grendel upper has a 16" M4 contour barrel with a 416R stainless finish, and features a 1:8 twist rate, with a carbine length gas system. It includes a standard handguard with A2 front sight, an M4 flat-top forged upper receiver, a BCA bolt carrier group, a flash hider, and a rear charging handle. This 6.5 Grendel upper is compatible with any mil-spec AR-15 lower. More Information Color Black SKU 9038-UA6.5CM41618SS-SHGFS Weight (lbs) 5.000000 Magazine Capacity N/A Length 16 Profile M4 Contour Twist 1:8 Finish Stainless Material 416R Stainless Steel

This BCA 6.5 Creedmoor Slick Side AR-10 Complete Upper has an 18” barrel with a heavy profile, made with a 416R stainless steel finish, Mil-Spec DPMS Low Profile, and features a 1:8 Twist Rate, and a rifle-length gas system. The Upper includes a 15” MLOK Rail, an M4 flat-top 7075 billet aluminum upper receiver, a BCA Bolt Carrier Group, and a Charging Handle. It is chambered in 6.5 Creedmoor and machined with AR-10 feed ramps in the barrel extension and features the new handguard. More Information SKU 654N-UASP65CRHB1818SS.93615MSR Weight (lbs) 8.000000 Magazine Capacity N/A Length 18

This BCA AR-15 complete .223 Wylde rifle length upper has a 16" M4 barrel with a 416R stainless steel barrel, and features a 1:9 twist rate, with a carbine length gas system. It includes the standard handguard with A2 Front Sight, an M4 flat-top forged upper receiver, a BCA bolt carrier group, a flash hider, and a rear charging handle. This .223 Wylde upper is compatible with any mil-spec AR-15 lower.  More Information SKU 9050-UA223WCM41619SS-SHGFS Weight (lbs) 4.750000 Magazine Capacity N/A Length 16 Profile M4 Contour Twist 1:9 Finish Stainless Material 416R Stainless Steel

This BCA AR-15 complete 12.7x42 rifle length upper has an 18" parkerized heavy barrel, and features a 1:20 twist rate, with a mid-length gas system. It includes a 15" MLOK Rail, an M4 flat-top forged upper receiver, and a flash hider. This 12.7x42 is compatible with any mil-spec AR-15 lower. More Information SKU UHA391N-127MHB18120P.936-15M3 Weight (lbs) 5.500000 Magazine Capacity N/A Length 18 Profile Heavy Barrel Twist 1:20 Finish Parkerized Material 4150 Chrome Moly Vanadium Thread Pitch 49/64 x 20 Caliber 12.7 x 42 Feed Ramp Single Feedramp Flutes Non-fluted

This BCA AR-15 complete 5.56 Nato rifle length upper has a 16" Cold Hammer Forged M4 contour barrel with a parkerized finish, and features a 1:7 twist rate, with a carbine length gas system. It includes the new 15" MLOK rail, an M4 flat-top billet upper receiver, a BCA bolt carrier group, a flash hider, and a Right side charging (Gen 2) handle (patent pending). This 5.56 Nato upper is compatible with any mil-spec AR-15 lower. More Information SKU 9107N-UASCH556CM41617PHF-15M3 Weight (lbs) 5.300000 Magazine Capacity N/A Length 16 Profile M4 Contour Twist 1:7 Finish Parkerized

This BCA AR-15 complete 12.7x42 rifle length upper has a 10.5" parkerized Heavy barrel, and features a 1:20 twist rate, with a pistol length gas system. It includes a 9.5" MLOK Rail, an M4 flat-top billet upper receiver, a BCA AR15 bolt carrier group, a flash hider, and a right-side charging (Gen2) handle (patent protected). This 12.7x42 is compatible with any mil-spec AR-15 lower. More Information SKU 559N-UASCH127PHB105120P93610M3 Weight (lbs) 4.500000 Magazine Capacity N/A Length 10.5 Profile Heavy Barrel Twist 1:20 Finish Parkerized Material 4150 Chrome Moly Vanadium

This BCA AR-15 complete 9MM pistol length upper has a 5" M4 barrel with a parkerized finish, and features a 1:10 twist rate, with a blow back gas system. It includes a 4" MLOK rail, an M4 flat-top billet upper receiver, a BCA bolt carrier group, a flash hider, and Gen 2 (patent pending) Side Charging handle and fits on a mil-spec AR-9 lower. More Information SKU 9069NB-UASCH9MMPSB5110P-4M3 Weight (lbs) 1.750000 Magazine Capacity N/A Length 5 Profile M4 Contour Twist 1:10 Finish Parkerized Material 4150 Chrome Moly Vanadium Thread Pitch 1/2 x 36 Caliber 9MM

This AR-22 BCA right side charging Receiver will work with any mil-spec .22 LR barrel. More Information SKU URBSC-22L-BLEM Weight (lbs) 1.400000 Magazine Capacity N/A Caliber .22 Long Rifle Classification Upper Receiver Platform AR-22 Receiver Material Billet

This BCA AR-15 Complete Upper has a 20" barrel with a Heavy Weight profile, made of 416R Steel with a Stainless Steel finish, and features a 1:7 Twist Rate, a Rifle length gas system. The Upper includes the new 15" MLOK Rail, an M4 flat-top forged upper receiver with forwarding assist, a BCA Bolt Carrier Group, a Flash Hider, and a right-side charging (Gen2) handle (patent protected). It is chambered in .224 Valkyrie and machined with M4 feed ramps in the barrel extension. More Information SKU 9151N-UASCH224VRHB2017SS-15M3 Weight (lbs) 6.300000 Magazine Capacity N/A Length 20

This BCA AR-15 complete 5.56 Nato pistol length upper has a 10.5" M4 contour barrel with a parkerized finish, and features a 1:7 twist rate, with a carbine length gas system. It includes a standard handguard, an M4 flat-top forged upper receiver, a BCA bolt carrier group, a flash hider, and a rear charging handle. This 5.56 Nato upper is compatible with any mil-spec AR-15 lower. More Information SKU 275-UA556CM410.517P-SHGGB Weight (lbs) 3.000000 Magazine Capacity N/A Length 10.5 Profile M4 Contour Twist 1:7 Finish Parkerized Material 4150 Chrome Moly Vanadium Thread Pitch 1/2 x 28

This AR-15 BCA right side charging Receiver will work with any mil-spec 223, 5.56, 300 Blackout, 6.5 Grendel, 7.62x39, or 350 Legend barrel. More Information SKU URBSC-15-BLEM Weight (lbs) 1.400000 Magazine Capacity N/A Classification Upper Receiver Platform AR-15 Receiver Material Billet

This AR-15 BCA right side charging Receiver will work with any mil-spec .450 Bushmaster / .458 SOCOM / 12.7x42 barrel. More Information SKU URBSC-450-BLEM Weight (lbs) 1.400000 Magazine Capacity N/A Classification Upper Receiver Platform AR-15 Receiver Material Billet URBSC-450-BLEM

This BCA AR-15 complete 5.56 Nato rifle length upper has a 16" M4 contour barrel with a black nitride finish, and features a 1:7 twist rate, with a carbine length gas system. It includes a 15" MLOK rail, an M4 flat-top billet upper receiver, a BCA bolt carrier group, a flash hider, and a right-side charging (Gen2) handle (patent protected). This 5.56 Nato upper is compatible with any mil-spec AR-15 lower. More Information SKU 698N-UASCH556CM41617M-15M3 Weight (lbs) 5.300000 Magazine Capacity N/A Length 16 Profile M4 Contour Twist 1:7 Finish Black Nitride

This BCA AR-15 Complete Side Charging Gen 2 Upper has a 16" M4 Contour black nitride cold hammer forged barrel, it features a 1:8 Twist Rate and a Carbine length gas system. It includes a 15" lightweight MLOK Rail, an M4 flat-top billet upper receiver, a BCA Bolt Carrier Group, a Flash Hider, and a right-side charging (Gen2) handle (patent protected). It is chambered in 5.56 NATO. More Information SKU 9238-UASCH556CM41618MHF-15MLW Weight (lbs) 5.000000 Magazine Capacity N/A Length 16 Profile M4 Contour Twist 1:8 Finish Black Nitride Material 4150 Chrome Moly Vanadium

This BCA AR-15 complete 7.62x39 rifle length upper has a 16" heavy barrel with a parkerized finish, and features a 1:10 twist rate, with a carbine length gas system. It includes a 15" MLOK rail, an M4 flat-top forged upper receiver, a BCA bolt carrier group, a flash hider, and a rear charging handle. This 7.62x39 upper is compatible with any mil-spec AR-15 lower. More Information SKU 686N-UA762CHB16110P-15M3 Weight (lbs) 5.800000 Magazine Capacity N/A Length 16 Profile Heavy Barrel Twist 1:10 Finish Parkerized Material 4150 Chrome Moly Vanadium Thread Pitch 5/8 x 24

Bear Creek Complete AR15 Uppers from $179.99

This BCA AR-15 complete 5.56 NATO rifle length upper has a 16" M4 contour barrel with a parkerized finish, and features a 1:7 twist rate, with a mid-length gas system. It includes a 15" MLOK rail, an M4 flat-top billet upper receiver, a BCA bolt carrier group, and a right-side charging (Gen2) handle (patent protected). This 5.56 Nato upper is compatible with any mil-spec AR-15 lower. More Information SKU 567N-UASCH556MM41617P-15M3 Weight (lbs) 5.300000 Magazine Capacity N/A Length 16 Profile M4 Contour Twist 1:7 Finish Parkerized Material 4150 Chrome Moly Vanadium

This BCA AR-15 complete .223 Wylde rifle length upper has a 10.5" M4 contour barrel with a 416R stainless finish, and features a 1:7 twist rate, with a carbine length gas system. It includes a 9.5" MLOK rail, an M4 flat-top forged upper receiver, a BCA bolt carrier group, a flash hider, and a rear charging handle. This .223 Wylde upper is compatible with any mil-spec AR-15 lower. More Information SKU 965N-UA223WCM410.517SS-10M3 Weight (lbs) 3.500000 Magazine Capacity N/A Length 10.5 Profile M4 Contour Twist 1:7 Finish Stainless Material 416R Stainless Steel Thread Pitch 1/2 x 28

This BCA AR-15 complete 5.56 NATO rifle length upper has a 16" heavy barrel with a parkerized straight fluted finish, and features a 1:9 twist rate, with a carbine length gas system. It includes the new 11.5" MLOK handguard, an M4 flat-top billet upper receiver, a BCA bolt carrier group, a flash hider, and a right-side charging (Gen2) handle (patent protected). This 5.56 Nato upper is compatible with any mil-spec AR-15 lower. More Information SKU 675N-UASCH556CHB1619PF-12M3 Weight (lbs) 5.300000 Magazine Capacity N/A Length 16 Profile Heavy Barrel Twist 1:9 Finish Parkerized

This Bear Creek Arsenal AR-15 Complete .223 Wylde Side Charging pistol upper has a 10.5" M4 barrel with a 416R stainless steel finish, and features a 1:7 twist, with a pistol length gas system. It includes the new 9.5" MLOK rail, a M4 flat-top 7075 billet aluminum upper receiver, a BCA Bolt Carrier Group, Flash Hider, and a right side charging (Gen 2) handle (patent protected). This .223 upper is compatible with any mil-spec AR-15 lower.  More Information SKU 9473N-UASCH223WPM410.517SS-10M3 Weight (lbs) 3.750000 Magazine Capacity N/A Length 10.5 Profile M4 Contour Twist 1:7

This BCA AR-15 complete 6.5 Grendel Slick Side rifle length upper has a 16" M4 barrel with a parkerized finish, and features a 1:8 twist rate, with a carbine length gas system. It includes a 15 1/4" MLOK rail, an M4 flat-top 7075 billet aluminum upper receiver, a BCA bolt carrier group, a flash hider, and a rear charging handle. This 6.5 Grendel upper is compatible with any mil-spec AR-15 lower. This has the new handguard. This Slick Side upper has no forward assist or dust cover. More Information SKU 450N-UASP6.5CM41618P-15M3 Weight (lbs) 5.300000 Magazine Capacity N/A Length 16

This BCA AR-10 complete .308 rifle length upper has a 18" parkerized Heavy barrel, and features a 1:10 twist rate, with a mid-length gas system. It includes the new 15" MLOK split rail, an M4 flat-top billet upper receiver, a BCA AR10 bolt carrier group, a flash hider, and a rear charging handle. This 308 upper is compatible with 1st gen DPMS low profile lowers. More Information SKU 499N-UA308MSC18110P-15MSR Weight (lbs) 8.000000 Magazine Capacity N/A Length 18 Profile Heavy Barrel Twist 1:10 Finish Parkerized Material 4150 Chrome Moly Vanadium Thread Pitch 5/8 x 24 Caliber .308

This Bear Creek Arsenal AR-15 Complete 7.62x39 rifle length upper has a 16" Cold Hammer Forged heavy barrel with a black nitride finish, and features a 1:10 twist rate, with a Carbine length gas system. It includes a Standard Handguard, Front Sight and Carry Handle, a M4 flat-top forged upper receiver, a BCA Bolt Carrier Group, Flash Hider, and a rear charging handle. This 7.62x39 upper is compatible with any mil-spec AR-15 lower. More Information SKU 9148-UA762CHB16110MHF-SHGFSCH Weight (lbs) 4.500000 Magazine Capacity N/A Length 16 Profile Heavy Barrel Twist 1:10

This BCA AR-10 complete upper has an 18” straight fluted barrel with a heavy profile, made of 4150 steel with a black nitride finish, Mil-Spec DPMS Low Profile, and features a 1:8 Twist Rate, and a rifle-length gas system. This Upper includes a 15” MLOK Split Rail, an M4 flat-top forged upper receiver, a BCA Bolt Carrier Group, and a rear charging handle. It is chambered in 6.5 Creedmoor and machined with AR-10 feed ramps in the barrel extension. More Information SKU 9336N-UA65CRHB1818MFFUR-15MSR Weight (lbs) 8.000000 Magazine Capacity N/A Length 18 Profile Heavy Barrel Twist 1:8

This BCA AR-15 complete 5.56 Nato rifle length upper has a 18" heavy contour barrel with a stainless steel and black nitride finish with bear claw flutes, and features a 1:8 twist rate, with a mid length gas system. It includes the new 15" MLOK rail, an M4 flat-top forged upper receiver, a BCA bolt carrier group, a flash hider, and a rear charging handle. This 5.56 Nato upper is compatible with any mil-spec AR-15 lower. More Information SKU 9043N-UA556MHB1818SSBCF-15M3 Weight (lbs) 5.500000 Magazine Capacity N/A Length 18 Profile Heavy Barrel Twist 1:8 Finish Black Nitride

This BCA AR-10 complete .308 rifle length upper has a 20" 416R stainless steel and black nitride finish with bear claw flutes Heavy barrel, and features a 1:10 twist rate, with a rifle length gas system. It includes a 15" MLOK split rail, an M4 flat-top forged upper receiver, a BCA AR10 bolt carrier group, a flash hider, and a rear charging handle. This .308 upper is compatible with 1st gen DPMS low profile lowers. More Information SKU 9035N-UA308RHB20110SSBCFFUR-15MSR Weight (lbs) 8.250000 Magazine Capacity N/A Length 20 Profile Heavy Barrel Twist 1:10 Finish Black Nitride

This BCA AR-10 complete .308 rifle length upper has a 20" parkerized Heavy barrel, and features a 1:10 twist rate, with a rifle length gas system. It includes a 15" MLOK Split Rail, an M4 flat-top billet upper receiver, a BCA AR10 bolt carrier group, a flash hider, and a right-side charging (Gen2) handle (patent protected). This .308 upper is compatible with 1st gen DPMS low profile lowers. More Information SKU 112N-UASCH308RMW20110P-15MSR Weight (lbs) 8.250000 Magazine Capacity N/A Length 20 Profile Heavy Barrel Twist 1:10 Finish Parkerized Material 4150 Chrome Moly Vanadium

This BCA AR-15 complete 5.56 Nato rifle length upper has a 16" heavy contour barrel with a stainless steel and black nitride finish with bear claw flutes, and features a 1:8 twist rate, with a carbine length gas system. It includes the new 11.5" MLOK rail, an M4 flat-top billet upper receiver, a BCA bolt carrier group, a flash hider, and a right-side charging (Gen2) handle (patent protected). This 5.56 Nato upper is compatible with any mil-spec AR-15 lower. More Information SKU 9721N-UASCH556CHB1618SSBCF-12M3 Weight (lbs) 5.300000 Magazine Capacity N/A Length 16 Profile Heavy Barrel

This BCA AR-15 complete DUAL Charger 5.56 Nato rifle length upper has a 16" M4 barrel with a black nitride finish, and features a 1:7 twist rate, with a carbine length gas system. It includes a 15" MLOK rail, an M4 flat-top billet upper receiver, a BCA bolt carrier group, a flash hider, and a right-side charging (Gen2) handle (patent protected) and rear charge handle. This 5.56 Nato upper is compatible with any mil-spec AR-15 lower. More Information SKU 9646N-UADCH556CM41617M-15M3 Weight (lbs) 5.300000 Magazine Capacity N/A Length 16 Profile M4 Contour Twist 1:7 Finish Black Nitride

This BCA AR-10 complete .308 rifle length upper has a 20" 416R Stainless steel straight fluted Heavy barrel with black nitride finish, and features a 1:10 twist rate, with a rifle length gas system. It includes a 15" MLOK split rail, an M4 flat-top billet upper receiver, a BCA AR10 bolt carrier group, a flash hider, and a right-side charging (Gen2) handle (patent protected). This 308 upper is compatible with 1st gen DPMS low profile lowers. More Information SKU 137N-UASCH308RMW20110SSMF-15MSR Weight (lbs) 8.250000 Magazine Capacity N/A Length 20 Profile Heavy Barrel Twist 1:10