Uppers Gun Parts

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Matador Arms "Montgo-9 Mil-Spec (With Iron Sights)" 5.5" AR-15 Pistol Featuring Matador Arms UpperComplete Upper Build (Assembled or Unassembled) Caliber:Caliber: 9mm / 9x19A 9mm AR pistol might be the most fun of all the ways to shoot one of the most popular calibers. In an AR platform that is more compact and mobile than a full rifle build, you have the same low recoil versatility that 9mm offers.

Builder's Grade Complete 11" 9mm Upper Receiver - Black | FLASH CAN | 12" M-LOK | With Bolt Carrier Group and Charging Handle This Complete 11 inch M-LOK upper receiver comes with a 12 inch free float handguard and is built with only the best Mil-Spec components. The heart of this upper is comprised of a 4150 barrel and our black nitride bolt carrier group that is finished with an incredible polish, making the action smooth and easy to keep clean.

Quick Overview SKU: 7780446 UPC: 7780446 MFR#: 7780446 Barrel Length: 16" Gas System: Mid-length Barrel Profile: A2 Barrel Steel: Chrome-Moly Vanadium Barrel Finish: Melonite Chrome Lining: None Muzzle Thread: 1/2-28 Chamber: 5.56 NATO Twist Rate: 1:7 Barrel Extension: M4 Diameter at Gas Block: .750 Gas Block Type: F-marked Front Sight Base Muzzle Device: A2 Flash Hider Receiver Material: Forged 7075 T6 Receiver Type: M4 Hand guard Type: Magpul MOE Black Hand Guards Bolt Carrier Group Included: No Bolt Steel: N/A Bolt Carrier Profile: N/A

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 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 9045N-UASCH308RHB20110SSBCF-15MSR Weight (lbs) 8.250000 Magazine Capacity N/A Length 20 Profile Heavy Barrel Twist 1:10

SKU 51655157796 Brand Palmetto State Armory DETAILS Barrel Length: 18" Gas System: Rifle-length Barrel Profile: A2 Style Barrel Steel: 416R Barrel Finish: Stainless Steel Chrome Lining: None Muzzle Thread: 1/2-28 Chamber: .223 Wylde Twist Rate: 1:7 Barrel Extension: M4 Diameter at Gas Block: .750 Gas Block Type: Low profile adjustable gas block Muzzle Device: A2 Flash Hider Receiver Material: Forged 7075 T6 Receiver Type: M4 Handguard Type: PSA 15" Lightweight M-Lok Free Float Rail Bolt Carrier Group Included: No Charging Handle Included: No

AR-15 5.56/.223 7.5" Pistol Upper Assembly / 7" Fake Can / MlokAR-15 5.56/.223 7.5" Pistol Upper Assembly / 7" Fake Can / Mlok Features: Overall length: 21"Chamber - 5.56 NATO  (Shoots both .223 Rem and 5.56 NATO) Barrel Twist - 1x7 Barrel Thread - 1/2 x 28 Barrel Steel - 41V50 CMV, Gov't Profile, Parkerized, M4 Feedrmaps Muzzle Brake - 7" Moriarti Fake Can anodized black, aluminum steel, caliber and logo engraved, G2. Not pinned.

This BCA AR-10 complete .308 rifle length upper has a 20" 416R stainless straight fluted 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 9334N-UA308RMW20110SSFFUR-15MSR Weight (lbs) 8.250000 Magazine Capacity N/A Length 20 Profile Heavy Barrel Twist 1:10 Finish Stainless Material 416R Stainless Steel

This BCA AR-10 complete .308 rifle length upper has a 20" 416R stainless steel straight fluted 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. This has the new handguard. More Information SKU 580N-UASCH308RMW20110SSF-15MSR Weight (lbs) 8.250000 Magazine Capacity N/A Length 20 Profile Heavy Barrel Twist 1:10

This BCA AR-10 complete .308 rifle length upper has a 20" 416R stainless 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 and features the new handguard. This .308 upper is compatible with 1st gen DPMS low profile lowers. More Information SKU 9253N-UA308RMW20110SSFUR-15MSR Weight (lbs) 8.250000 Magazine Capacity N/A Length 20 Profile Heavy Barrel Twist 1:10 Finish Stainless Material 416R Stainless Steel

SKU 51655155039 Brand Palmetto State Armory DETAILS Barrel Length: 16” Barrel Material: 4150V Chrome Moly Vanadium Steel Barrel Finish: Nitride Barrel Profile: M4 Chamber: 5.56 NATO Twist Rate: 1 in 7” Extension: M4 Gas System: Carbine Gas Block Type: Low Profile .750” Diameter Upper Receiver: Forged 7075 T6 Aluminum Receiver Style: M4 Flat top with feed ramps Receiver Finish: Hardcoat Anodized Forward Assist: Yes Dust Cover: Yes Handguard Style: PSA 13.5" Lightweight Hex Full Picatinny M-LOK handguard Bolt Carrier Group: N/A Charging Handle: N/A FEATURES

This Complete 10.5 inch M-LOK upper receiver comes with a 12 inch free float handguard and is built with only the best Mil-Spec components. The heart of this upper is comprised of a 4150 barrel and our black nitride bolt carrier group that is finished with an incredible polish, making the action smooth and easy to keep clean. Barrel Specifications Caliber 300BLK Length 10.5" Material 4150 Chrome Moly Vanadium Profile Medium Finish QPQ Corrosion Resistant Gas System Length Pistol Gas Block Journal .750" Dimpled? No Twist Rate 1:7 Muzzle Thread 5/8x24 TPI Weight 20.8oz

NOTE: This part features a colored anodized finish. These finishes are held to different aesthetic standards than parts finished in black anodizing or Cerakote. For more information on colored anodizing visit our Knowledge Center.

NOTE: This part features a colored anodized finish. These finishes are held to different aesthetic standards than parts finished in black anodizing or Cerakote. For more information on colored anodizing visit our Knowledge Center.

This complete upper receiver features the same tried-and-true construction and aesthetics as our M4E1 Threaded Upper Receivers, without provisions for a forward assist. The included ATLAS R-ONE Handguard is designed with size and weight in mind, while still providing plenty of real-estate to accommodate any attachment needs the end user may have. Our proprietary ATLAS attachment system is a durable and dependable mounting platform, maintaining a slim profile while still providing the strength and stability customers have grown to love from Aero Precision handguards. INCLUDES:

NOTE: This part features a colored anodized finish. These finishes are held to different aesthetic standards than parts finished in black anodizing or Cerakote. For more information on colored anodizing visit our Knowledge Center.

This BCA AR-15 complete .450 Bushmaster rifle length upper has a 18" heavy barrel with a parkerized finish, and features a 1:24 twist rate, with a mid-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 .450 Bushmaster upper is compatible with any mil-spec AR-15 lower. This has the new handguard. More Information SKU 691N-UA450MHB18124P-15M3 Weight (lbs) 6.000000 Magazine Capacity N/A Length 18 Profile Heavy Barrel Twist 1:24 Finish Parkerized

This BCA AR-15 Complete 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 the new 15" MLOK Rail, an M4 flat-top forged upper receiver, a BCA Bolt Carrier Group, a Flash Hider, a rear Charging Handle, and is chambered in 5.56 NATO. Shop more 5.56 NATO Uppers! Magazine not included. Check out Magazines here! See All Ammunition Recommendations Here. It is the responsibility of the consumer to ensure all state, local, federal, and ITAR regulations are followed. More Information

SKU LSA-BKITGRN11 Brand Lead Star Arms Model Number LSA-BKITGRN11 UPC 810055795420 DETAILS Forged from aluminum and designed to withstand duty use, our AR-15 builder's kits are built for business. Upper Receiver: CNC machined from 7075-T6 aluminum for extreme precision and enhanced durability. Flat top picatinny design for versatility in mounting optics and other enhanced components. M4 feed ramps for added reliability. Designed for use with all MIL-SPEC components. Sniper Green Cerakote Lower Receiver:

The Stag 10 Marksman Complete Upper comes with a precision machined Stag 10 Upper receiver ready to be combined with any compatible Stag 10 Lower of your choice. Its 18 inch barrel is chambered in .308 with a 1/10 twist rate. The barrel is coated with Black Nitride with a VG6 Gamma Compensator, and 16.5" Stag 10 SL M-LOK Handguard. * To prevent any confusion, the purchase of any Stag Arms Complete Upper does NOT include charging handle or BCG. ATF Regulated No Tax Stamp No State Compliance California, New York, Capacity Limited States Platform Stag 10 Barrel Length 18"

This BCA AR-15 complete 5.56 Nato pistol length upper has a 7.5" M4 contour barrel with a parkerized finish, and features a 1:7 twist rate, with a pistol length gas system. It includes a 6.5" MLOK rail, an M4 flat-top 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 621N-UA556PM47.517P-7M3 Weight (lbs) 3.250000 Magazine Capacity N/A Length 7.5 Profile M4 Contour Twist 1:7 Finish Parkerized Material 4150 Chrome Moly Vanadium Thread Pitch 1/2 x 28

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 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. This has the new handguard. More Information SKU 625N-UA556MM41617P-15M3 Weight (lbs) 6.000000 Magazine Capacity N/A Length 16 Profile M4 Contour Twist 1:7 Finish Parkerized Material 4150 Chrome Moly Vanadium

Awesome target / varmint setup for your next ar15 build. - 24″ 4150 CMV .936 Bull Barrel - Black nitride finish - 223 wylde chamber (shoots 5.56/223) - Rifle gas length - .936 gas block - Spiral flutes - Target crown - Dust cover - Forward assist - M4 feed ramps - Mil spec 7075-t6 aluminum receiver - Anodized black

Description The Bootleg upper receiver is machined from 7075 aluminum and mil spec hard anodized. It features a lightweight design and upgraded features to start your build off right. - Machined from forged 7075 Aluminum - Mil Spec Hard Anodizing - Forward assist eliminated for weight saving and reduced snag risk - Lightweight design 6.2 oz stripped (.8 oz lighter than a mil spec upper receiver) - 1.7 oz lighter than a mil spec upper receiver with hardware installed - Captured dust cover door pin eliminating the need for the E clip

Weight 7.2 oz Finish Anodized, Black Forward Assist Not Included Port Door / Dust Cover Not Included Receiver Material 7075 Aluminum T-Marks T-Marked Feed Ramps M4 MPN UR-556-FOR UPC 811745029207 SKU: 21364

Davidson Defense "Steel Serpent" AR-15 Rifle Featuring Davidson Defense Upper 5.56 NATO 16" QPQ Nitride 1:7T 15" M-Lok Gauntlet Arms Free Float Handguard Upper Build Kit (Assembled or Parts Kit) Caliber: 5.56x45 NATO / .223 Remington

Davidson Defense "Steel Serpent" AR-15 Rifle Featuring Davidson Defense Upper 5.56 NATO 16" QPQ Nitride 1:7T 15" M-Lok Gauntlet Arms Free Float Handguard Complete Upper Build (Assembled or Parts Kit) Caliber: 5.56x45 NATO / .223 Remington

This BCA AR-15 complete 350 Legend rifle length upper has a 20" heavy barrel with a 416R stainless 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 billet 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 964N-UA350LCHB20116SSBUR-15M3 Weight (lbs) 5.850000 Magazine Capacity N/A Length 20 Profile Heavy Barrel Twist 1:16 Finish Stainless

This BCA AR-15 complete 5.56 Nato rifle length upper has a 16" M4 contour Cold Hammer Forged barrel with a black nitride 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 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 9744N-UASCH556CM41618MHF-15M3 Weight (lbs) 5.300000 Magazine Capacity N/A Length 16 Profile M4 Contour Twist 1:8 Finish Black Nitride

This Bear Creek Arsenal AR-15 Complete 5.56 rifle length upper has a 20" Bear Claw Heavy barrel with a Black Nitride finish, and features a 1:8 twist, with a rifle length gas system. It includes a Rifle Handguard, A2 Front Sight & 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. More Information Color Black SKU 8995-UA556RHB2018SSBCF-RHGFS Weight (lbs) 7.250000 Magazine Capacity N/A Length 20 Profile Heavy Barrel Twist 1:8 Finish Black Nitride

This BCA AR-15 complete 300 Blackout rifle length upper has a 16" heavy 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 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. This has the new handguard More Information SKU 635N-UA300CHB1618P-15M3 Weight (lbs) 5.750000 Magazine Capacity N/A Length 16 Profile Heavy Barrel Twist 1:8 Finish Parkerized Material 4150 Chrome Moly Vanadium

This Bear Creek Arsenal AR-15 Complete 5.56 rifle length upper has a 20" Government Cold Hammer Forged barrel with a Black Nitride finish, and features a 1:8 twist, with a rifle length gas system. It includes a Rifle Handguard, A2 Front Sight & Carry Handle, 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. More Information SKU 9216-UA556RGVNT2018MHF-RHGFSCH Weight (lbs) 5.200000 Magazine Capacity N/A Length 20 Profile Government Twist 1:8 Finish Black Nitride

Description Stripped, semi-auto, billet upper receiver. Perfect platform for building your unique, mission-specific, AR-15 pistol caliber rifle/pistol. Made from a high-strength, 7075 T6 aluminum for durability. Mil-Spec, MIL-A-8625 Type III hardcoat anodized finish adds extra strength and delivers superior abrasion-resistance for rugged field use. Precision-machined to ensure drop-in installation of Mil-Spec, aftermarket components. Weight 7.8oz. Weight 0.0000 oz Feed Ramps None Finished Anodized Black Forward Assist Not Compatible Port Door / Dust Cover Not Compatible

This item ships in OEM packaging, not retail packaging. Cannon Store Parts may have cosmetic blems such as machining marks, pock marks, and other small imperfections.

DD Custom Arms ELITE Series "Stars and Stripes" AR-15 Pistol Featuring Aero Precision Upper 5.56 NATO 14.5" QPQ Nitride 1:7T Picatinny MMC Armory Handguard Upper Build Kit (Assembled or Parts Kit) Caliber: 5.56x45 NATO / .223 Remington

DD Custom Arms ELITE Series "Stars and Stripes" AR-15 Pistol Featuring Aero Precision Upper 5.56 NATO 14.5" QPQ Nitride 1:7T Picatinny MMC Armory Handguard Complete Upper Build (Assembled or Parts Kit) Caliber: 5.56x45 NATO / .223 Remington

AR-10 8" 8.6 Blackout Big Gunner Upper Assembly / MuzzlokAR-10 8" 8.6 Blackout Big Gunner Upper Assembly / Muzzlok is a perfect addition to your AR-10 build.

SKU 51655105734 Brand Palmetto State Armory Model Number 51655105734 UPC 51655105734 DETAILS Barrel Length: 16" Gas System: Carbine-length Barrel Profile: M4 Barrel Steel: Chrome-Moly Vanadium Barrel Finish: Nitride Chrome Lining: None Muzzle Thread: 1/2-28 Chamber: 5.56 NATO Twist Rate: 1:7 Barrel Extension: M4 Diameter at Gas Block: .750 Gas Block Type: Low-profile Muzzle Device: A2 Flash Hider Receiver Material: Forged 7075 T6 Receiver Type: M4 Handguard Type: PSA 13.5" M-Lok Lightweight Rail Bolt Carrier Group Included: Yes Bolt Steel: Carpenter 158

Davidson Defense "Halcyon's Special" AR-15 Pistol Featuring Davidson Defense Upper 7.62x39mm 10.5" 4150 CMV Phosphate 1:10T 9" M-Lok Guntec Free Float Handguard Complete Upper Build (Assembled or Parts Kit) Caliber: 7.62x39

MPN#: APAR610401AC The AR15 Assembled Upper Receiver comes with the port door already installed. This specific model does not have forward assist provisions. Forged from 7075-T6 aluminum, this assembled upper is precision machined to mil-spec M16/M4 specifications and features M4 feedramps. Match this upper with one of our AR15 lower receivers for a solid and dependable fit. Note: The no-forward assist upper receivers use a custom forging designed to work specifically with mil-spec port doors. It may not work with aftermarket port doors. Features: M4 Feedramps

The AR15 Stripped Upper Receiver is one of our most popular products. Forged from 7075-T6 aluminum, this stripped upper is precision machined to mil- spec M16/M4 specifications and features M4 feedramps. On this specific model, the forward assist provisions have been removed. Match this upper with one of our AR15 lower receivers for a solid and dependable fit. Note: The no-forward assist upper receivers use a custom forging designed to work specifically with mil-spec port doors. It may not work with aftermarket port doors. Features: M4 Feedramps .250 takedown pin holes

This upper receiver and BCG combo is the perfect core for the lefty shooters out there looking to start their next build. This kit includes both a left-handed upper receiver and bolt carrier group which are the two primary components needed to allow for left handed ejection on AR15 pattern rifles. UPPER RECEIVER FEATURES: T-Marked Picatinny rail M4 Feedramps Anodized Black finish Left handed BCG cam channel Left handed ejection port BCG FEATURES: Left side ejection-oriented ejector, extractor, and cam pin path. Left side forward assist serrations Nickle Boron Finish C158 Bolt

More Information SKU 9217N-UASCH410SGPM420PUT-15M3 Weight (lbs) 5.750000 Magazine Capacity N/A Length 20 Profile M4 Contour Finish Parkerized Material 4150 Chrome Moly Vanadium Thread Pitch Non-Threaded Caliber .410 Flutes Non-fluted Gas System Pistol Length Gas Block System 0.750 Charging Style Right Side Charging Classification Complete Upper Assembly Platform AR-15 Bolt Material E9310 Receiver Material Billet

Davidson Defense "Boss Hog" AR-15 Pistol Featuring Davidson Defense Upper 5.56 NATO 10.5" 4150 CMV Nitride 1:8T Carbine M-Lok A*B ARMS Drop-In Handguard Complete Upper Build (Assembled or Unassembled) Caliber: - Caliber: 5.56x45 NATO / .223 Remington

Davidson Defense "Ancient One" AR-15 Pistol Featuring Davidson Defense Upper 5.56 NATO 10.5" 4150 CMV Nitride 1:8T Carbine Picatinny A*B ARMS Drop-In Handguard Complete Upper Build (Assembled or Unassembled) Caliber: - Caliber: 5.56x45 NATO / .223 Remington

Description Get started on your new AR-15 build with this Aero Precision Barreled Upper Receiver. It features a 16” barrel chambered in 5.56 NATO. It features a pinned front sight gas block and carbine length gas system a Magpul MOE SL M-LOK handguard. The upper receiver is forged from aluminum to Mil-Spec dimensions and hardcoat anodized black. Pick out your favorite bolt carrier group and charging handle and you have a complete upper receiver. Features: - 16” barrel chambered in 5.56 NATO - Pinned front sight gas block - Carbine length gas system

Matador Arms Montgo-9 Upper Receiver Assembly - Gen2, FDEMatador Arms would like to proudly introduce the MAT-9, the NEXT Generation blowback bufferless and monolithic (self-contained) upper receiver for lower receivers and almost all 9mm magazines. This upper receiver is side-folding compatible and features Matador Arms patent-pending EZTS "Easy Take-down System" with no tools required to break down the upper for maintenance and cleaning. The 9mm upper is machined for maximum weight reduction, slim profile, and compatibility with bolt catches and lower receivers.

Matador Arms "Montgo-9 Mil-Spec" 5.5" AR-15 Pistol Featuring Matador Arms UpperComplete Upper Build (Assembled or Unassembled) Caliber:Caliber: 9mm / 9x19A 9mm AR pistol might be the most fun of all the ways to shoot one of the most popular calibers. In an AR platform that is more compact and mobile than a full rifle build, you have the same low recoil versatility that 9mm offers.

Davidson Defense "Cobra King" AR-15 Pistol Featuring Davidson Defense Upper 5.56 NATO 10.5" 4150 CMV Nitride 1:8T Carbine M-Lok Strike Industries Drop-In Handguard Complete Upper Build (Assembled or Unassembled) Caliber: - Caliber: 5.56x45 NATO / .223 Remington

SKU 7779344B Brand Palmetto State Armory Model Number 7778344B UPC 7779344B DETAILS 16" Barrel Length 5.56 NATO Chamber 1 in 7" twist 4150V Chrome Moly Steel Barrel, Nitride Carbine-length Gas System M16 Full Auto Bolt Carrier  C158 MPI/HPT Bolt Charging Handle ** These uppers will have cosmetic blemishes that do not affect function. This may include, but is not limited to, forging marks under the finish, scratches, slight variation in the finish color coat. FEATURES

SKU: 516445338 UPC: 516445338 MFR#: 516445338 - 16" Barrel length - 4150V Chrome Moly Vanadium Steel - 5.56 Nato Chamber - Melonite Finish - 1 in 7" twist rate - M4 Feed ramps - F-Marked Front sight post - A2 Flash Hider - Sling Loop - Standard Gray Hand Guards  - Forged Upper Receiver - M16 Bolt Carrier Group - Carpenter 158 Bolt - Charging Handle

DD Custom Arms "Lightshow - Short" AR-15 Pistol Featuring Davidson Defense Upper 5.56 NATO 12.5" 416R SS Nitride 1:7T 12" M-Lok Guntec Free Float Handguard Complete Upper Build (Assembled or Parts Kit) Caliber: 5.56x45 NATO / .223 Remington

Davidson Defense "Halcyon's Special" AR-15 Pistol Featuring Davidson Defense Upper 7.62x39mm 10.5" 4150 CMV Phosphate 1:10T 9" M-Lok Guntec Free Float Handguard Upper Build Kit (Assembled or Parts Kit) Caliber: 7.62x39

This BCA AR-10 complete .243 rifle length upper has a 24" 416R Stainless Steel Light-weight barrel, and features a 1:8 twist rate, with a rifle length gas system. This upper features our lightweight barrel profile which reduces weight by 1 lb. over traditional contours. 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 side charging handle. This 243 is compatible with 1st gen DPMS low profile lowers. More Information SKU 9303N-UASCH243RLW2418SS-15MSR Weight (lbs) 8.500000 Magazine Capacity N/A Length 24

Davidson Defense "Temporal Vortice" LR-308 Rifle Featuring Davidson Defense Upper 6.5 Creedmoor 20" 4150 CMV Nitride 1:8T 17 M-Lok Gauntlet Arms Freefloat Handguard Complete Upper Build (Assembled or Parts Kit) Caliber: 6.5 Creedmoor / 6.5x48mm

Davidson Defense "Temporal Vortice" LR-308 Rifle Featuring Davidson Defense Upper 6.5 Creedmoor 20" 4150 CMV Nitride 1:8T 17 M-Lok Gauntlet Arms Freefloat Handguard Upper Build Kit (Assembled or Parts Kit) Caliber: 6.5 Creedmoor / 6.5x48mm

SKU 5165491121 Brand Palmetto State Armory Model Number 5165491121 UPC 5165491121 DETAILS Barrel Length: 8.5" Gas System: Pistol Length Barrel Profile: Heavy Barrel Steel: 4150V Barrel Finish: Nitride Chrome Lining: None Muzzle Thread: 5/8-24 Chamber: 300AAC Blackout Twist Rate: 1:7 Barrel Extension: M4 Diameter at Gas Block: .750 Gas Block Type: Low-Profile Muzzle Device: A2 Style Flash Hider Receiver Material: Forged 7075 T6 Receiver Type: M4 Handguard Type: PSA 7" Lightweight M-Lok Free Float Rail Bolt Carrier Group Included: Yes Bolt Steel: Carpenter 158

MMC Armory AR-15 Sandblasted Stripped Upper Receiver GENERAL INFO: General Upper Receiver Info: Upper receivers mount and house the barrel, handguard, and gas system in an AR-15. Mil-Spec upper receivers are made to "military specification" which means they either match or exceed the military requirements imposed on the design. This receiver features a full-length 1913 Picatinny rail section on the top for mounting optics and iron sights a brass deflector and a standard forward assist section. ABOUT THIS UPPER:

NOTE: This part features a colored anodized finish. These finishes are held to different aesthetic standards than parts finished in black anodizing or Cerakote. For more information on colored anodizing visit our Knowledge Center.

NOTE: This part features a colored anodized finish. These finishes are held to different aesthetic standards than parts finished in black anodizing or Cerakote. For more information on colored anodizing visit our Knowledge Center.

This complete upper receiver features the same tried-and-true construction and aesthetics as our M4E1 Threaded Upper Receivers, without provisions for a forward assist. The S-ONE line of handguards are designed with size and weight in mind, providing the perfect addition to your lightweight build. Our proprietary ATLAS attachment system is a durable and dependable mounting platform, maintaining a slim profile while still providing the strength and stability customers have grown to love from Aero Precision handguards. INCLUDES: M4E1 Threaded Assembled No Forward Assist Upper Receiver