Uppers Gun Parts

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The Anderson Manufacturing AM-15 Utility 5.56 Complete Upper Receiver Group is built from the factory ready to be installed on your lower receiver. This complete AR-15 upper features a 16" barrel made from 4150 Chrome Moly Vanadium steel with a durable Nitride finish and a carbine length gas system with a 1:8 twist rate. The upper receiver is forged from 7075-T6 aluminum and hardcoat anodized black. The 15" free float handguard features M-LOK slots and an interrupted picatinny top rail to save weight.

ASSEMBLED M4 UPPER RECEIVER WITH PORT DOOR AND FORWARD ASSIST - CHOOSE COLOR This M4 Mil-Spec Upper Receiver comes with the port door and forward assist. These AR-15 uppers are precision machined from industry leading 7075 T6 aircraft grade aluminum forgings and they come with the upper completion kit already installed! M4 feedramps Machined from a Mil-Spec 7075 T6 forging Type III Hardcoat Anodized finish Includes port door and forward assist 100% Made in USA SKU: M4-ASMBLE-U-MTO

*Limited Run with NO T-MARKS, Upper ships STRIPPED, without Forward Assist & Port Door* Light Blemish, Uppers may have light handling marks, but you will be hard pressed to find actual blemishes.

Item #: Start your Ar-15 build with a quality assembled upper receiver. Properly built and ready to go on your rifle. Features: 16″ 4150 CMV 223 Wylde barrel (shoots 556/223) 7075-t6 Aluminum forged milspec receiver, anodized black Carbine Gas, .750 steel gas block, a2 flash hider, 1/2-28 threads Dust cover, forward assist 12″ MLOK lightweight free float handguard ASSEMBLED, TEST-FIRED, AND QC’D IN-HOUSE

Color : Black Barrel Contour : Government Barrel Length : 20.00 Attachment Type : Direct Mount Finish : Anodized Cartridge : 5.56x45 NATO Muzzle Device Diameter : 0.96 Item Length (Inches) : 31.000 Gas Block Diameter : 0.750 Inches Gas System Length : Rifle Receiver Style : Complete Item Weight (lbs) : 5.450 Hand : Right Material : Aluminum Item Height (Inches) : 4.000 Kit : Full Item Width (Inches) : 2.500 Muzzle Threads : 1/2"x28 Make Model Fit : AR-15.Universal Quantity : 1 Model Number : BRN-16A4 Twist : 1-7 Brownells sku: 430105693 MPN#: None UPC#: 050806500686

Barrel Contour : Government Material : Aluminum Gas System Length : Carbine Color : Black Barrel Length : 11.50 Muzzle Threads : 1/2"x28 Cartridge : 5.56x45 NATO Item Length (Inches) : 11.500 Finish : Anodized Twist : 1-7 Muzzle Device Diameter : 0.75 Hand : Right Receiver Style : Assembled Quantity : 1 Brownells sku: 430106360 MPN#: MIX

Color : Black Gas Block Diameter : 0.625 Inches Barrel Contour : Lightweight Finish : Anodized Gas System Length : Mid-Length Item Length (Inches) : 16.000 Barrel Length : 16.00 Material : Aluminum Muzzle Device Diameter : 0.625 Cartridge : 5.56x45 NATO Muzzle Threads : 1/2"x28 Hand : Right Quantity : 1 Receiver Style : Assembled Twist : 1-7 Brownells sku: 430106358 MPN#: MIX

NEW! Retro Uppers + Colt Optics and Daniel Defense Exclusive Uppers + EOtech Bundles

Finish : Matte Cartridge : 308 Winchester Barrel Length : 16.00 Color : Black Model Number : Upper With Romeo5 Receiver Style : Assembled Quantity : 1 Brownells sku: 430109708 MPN#: AERO UPPER ROMEO MIX 2

This assembled upper includes Aero Precision’s new ATLAS R-ONE Handguard! The R-ONE handguards are designed with size and weight in mind, while still providing plenty of real-estate to accommodate any attachment needs the end user may have. Their 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 Upper Receiver - Anodized Black 15" ATLAS R-ONE M-LOK Handguard with 16"CMV Barrel OR

SKU 51655131269 Brand Palmetto State Armory Model Number 51655131269 UPC 51655131269 DETAILS Long Stroke Gas Piston Operating System 8620 Front Trunnion 4340 Carrier 7 Lug Shot Peened Carpenter 158 Bolt Monolithic 6105 Receiver; Smoke 8.5” 300 Blackout Nitride 4150V Chrome Moly Steel Barrel Twist Rate: 1 in 8” Thread Pitch: 5/8x24 A2 Style Flash Hider Comes with a proprietary JAKL bolt catch that must be installed on the lower for proper function.

The Aero Precision M4E1 Lower Receiver delivers billet aesthetics in a forged package. This enhanced forging is machined from 7075-T6 aluminum and compatible with all Mil-Spec AR-15 parts. A threaded bolt catch roll pin offers simpler installation of the bolt catch and virtually eliminates the possibility of damage to the receiver finish during installation (pin included). 1/16" Hex Key required for assembly.

The Radical Firearms 18” .223 Wylde Barreled Upper is a match grade, drop-in solution for your next AR build. Crafted with quality materials and covered by Radical’s lifetime warranty, this better-than-MIL-SPEC upper receiver provides an outstanding solution for any budget. Arrives at your door with the hard work done, just drop in your favorite charging handle, BCG, and sights! Features: - 18" 416R stainless steel barrel - Chambered in .223 Wylde with 1:8 twist rate - 1/2x28 Radical Firearms BMD Muzzle Brake - 15" free float Radical Firearms RPR M-LOK Rail

The PWS MK1 PRO line features the PWS long stroke piston system. This line is perfect for shooters looking for a cost-effective piston system firearm without sacrificing the high quality standards PWS has been known for over a decade. Featuring a 3-setting adjustable gas system for users with suppressors, free-float MLOK handguard, Radian Raptor charging handle, extruded upper receiver that integrates an extremely solid handguard attachment system, the MK1 PRO line has an assortment of features ideal for shooters of all levels.

The Aero Precision M4E1 Threaded Upper Receiver stands apart from standard MIL-SPEC upper receivers, featuring an angular machined design. With the same enhanced body profile as the Aero M4E1 Enhanced Upper Receiver, this upper is threaded to accept a standard AR-15 barrel nut. Forged from 7075-T6 aluminum and precision machined to work with all Mil-Spec AR-15 parts. NOTE: Port door and forward assist not included. Features: - Picatinny profile blends seamlessly with Aero Enhanced and ATLAS series handguards - M4 Feedramps - .250 takedown pin holes

The Aero Precision Kodiak Brown M4E1 Threaded AR-15 Upper Receiver stands apart from standard MIL-SPEC upper receivers, featuring an angular machined design. With the same enhanced body profile as the Aero M4E1 Enhanced Upper Receiver, this upper is threaded to accept a standard AR-15 barrel nut. Forged from 7075-T6 aluminum and precision machined to work with all Mil-Spec AR-15 parts. This upper is hardcoat anodized in a sleek Kodiak Brown color to be sure your new rifle build stands out from the pack. Features:

SKU 5165449807 Brand Palmetto State Armory Model Number 5165449807 UPC 5165449807 DETAILS PSA 7.5" Pistol-Length 300AAC 1/8 Nitride 9" Lightweight M-Lok MOE EPT SBA3 Pistol - 5165449807 Gas System: Pistol Length Barrel Profile: Heavy Barrel Steel: 4150V Chrome Moly Steel Barrel Finish: Nitride Chrome Lining: None Muzzle Thread: 5/8-24 Chamber: 300AAC Blackout Twist Rate: 1 in 7" Barrel Extension: M4 Diameter at Gas Block: .750" Gas Block Type: Low-profile Muzzle Device: Fluted Flash Can Receiver Material: Forged 7075 T6 Aluminum Receiver Type: M4

Add the Colt legend of reliability to your rifle or build with these complete feature 1/7 RH twist in a chrome lined, button rifled barrel. Available with or without a charging handle, bolt carrier group, and back up sights. All NFA rules apply. NOTE: Does NOT include bolt carrier group, charging handle, or rear backup sight AR-15, Issue:11, Page:003 Big Book Catalog, Issue:72, Page:003 160-000-446WB

The Aero Precision Assembled Upper Receiver arrives with the port door and forward assist factory installed. Crafted from a 7075-T6 aluminum forging machined to MIL-SPEC including M4 feed ramps. The upper is then Type III Class 2 hardcoat anodized and laser engraved with T-marks. Compatible with all MIL-SPEC AR-15/M16 components. Features: M4 feedramps Anodized black Machined for .250” takedown/pivot pins Laser engraved T-marks Includes port door and forward assist Weight: 8.3 oz SKU: AP501603-ASMBLY MPN: APAR501603A

This Bear Creek Arsenal AR-15 Complete 5.56 rifle length upper has a 16" M4 with a black nitride finish, and features a 1:7 twist, with a mid-length gas system. It includes a 15" 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. More Information SKU 608N-UA556MM41617M-15M3 Weight (lbs) 5.300000 Magazine Capacity N/A Length 16 Profile M4 Contour Twist 1:7 Finish Black Nitride Material 4150 Chrome Moly Vanadium Thread Pitch 1/2 x 28 Caliber 5.56 NATO

This BCA AR-15 complete 5.56 Nato pistol length upper has a 12.5" SOCOM contour barrel with a parkerized finish, and features a 1:7 twist rate, with a mid-length gas system. It includes a 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 5.56 Nato upper is compatible with any mil-spec AR-15 lower. More Information SKU 8967N-UA556MSC12.517P-12M3 Weight (lbs) 4.250000 Magazine Capacity N/A Barrel Length 12.5 Profile SOCOM Twist 1:7 Barrel Finish Parkerized Material 4150 Chrome Moly Vanadium

This BCA AR-15 complete 5.56 Nato pistol length upper has a 12.5" SOCOM contour barrel with a parkerized finish, and features a 1:7 twist rate, with a mid-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 5.56 Nato upper is compatible with any mil-spec AR-15 lower. More Information SKU 8966N-UASCH556MSC12.517P-12M3 Weight (lbs) 4.250000 Magazine Capacity N/A Barrel Length 12.5 Profile SOCOM Twist 1:7 Barrel Finish Parkerized

The Daniel Defense MK18 Upper Receiver is a complete upper receiver system ideal for placement on AR pistol lower receivers or AR rifle lower receivers (NFA Short Barreled Rifle Regulations Apply). The upper is built around a carbine-length direct impingement gas system and a 10.3" barrel chambered for 5.56 NATO. The MK18 Upper features Daniel Defense’s RIS II Rail System with Santoprene heat resistant rail panels.

SKU 5165458419 Brand Palmetto State Armory Model Number 5165458419 UPC 5165458419 DETAILS PSA 10.5" CARBINE-LENGTH 5.56 NATO 1/7 PHOSPHATE 12" SLANT M-LOK UPPER - NO BCG OR CH - Barrel Length: 10.5" - Barrel Profile: A2 - Gas System: Carbine-length - Barrel Steel: 4150V Chrome Moly Vanadium - Barrel Finish: Phosphate - Chrome Lining: No - 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: Palmetto State Armory Fluted Flash Can

This NBS Slick Side Billet Upper Receiver and M-LOK Handguard combo was designed and machined to match up beautifully together. It packs a multitude of great features into a sleek, rigid and durable package. To top it off, this American made combo is backed by the NBS Limited Lifetime Warranty. NBS Slick Side Billet Upper Receiver

Finish : Anodized Barrel Length : 14.50 Hand : Right Barrel Contour : Government Color : DDC Item Height (Inches) : 2.250 Item Length (Inches) : 22.000 Cartridge : 5.56x45 NATO Item Weight (lbs) : 5.000 Receiver Style : Stripped Gas System Length : Mid-Length Item Width (Inches) : 2.250 Make Model Fit : AR-15.Universal Material : Aluminum Quantity : 1 Muzzle Threads : 1/2"x28 Twist : 1-7 Brownells sku: 430106318 MPN#: BROWNELLS-M4A1 RIII UPC#: 818773023801

SKU 51655109441 Brand Palmetto State Armory Model Number 51655109441 DETAILS Barrel Length: 16" Gas System: Carbine-Length Barrel Profile: M4 Barrel Steel: 4150V Chrome Moly Barrel Finish: Phosphate Chrome Lining: none Muzzle Thread: 1/2-28 Chamber: 5.56 NATO Twist Rate: 1 in 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 Handguard Type: Magpul MOE Black Handguards Bolt Carrier Group Included: Yes Bolt Steel: Carpenter 158

SKU 5655103472 Brand Palmetto State Armory Model Number 5655103472 UPC 5655103472 DETAILS Barrel Length: 16" Gas System: Pistol-Length Barrel Profile: Heavy Barrel Steel: 4150V Chrome Moly Vanadium Barrel Finish: Phosphate Chrome Lining: None Muzzle Thread: 5/8-24 Chamber: 300 AAC Blackout Twist Rate: 1 in 8" 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" Lightweight M-Lok Rail Bolt Carrier Group Included: No Bolt Steel: N/A

SKU 51655110453 Brand Palmetto State Armory Model Number 51655110453 UPC 51655110453 DETAILS Barrel Length: 7.5" Barrel Profile: Heavy Gas System: Pistol-length Barrel Steel: 4150V Chrome Moly Vanadium Barrel Finish: Phosphate Chrome Lining: No 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: PSA Fluted Flash Can Receiver Material: Forged 7075 T6 Receiver Type: M4 Handguard Type: PSA 10" Lightweight M-Lok Suppressor-Ready Rail; Internal Diameter 1.625"

Description Finally get a quality, true-to-form reproduction M16A1 Upper Receiver for a fraction of the cost. These are machined from 7075-T6 forgings specifically designed to have the correct proportions and profile of the original M16A1 Upper Receiver. Machine work is performed by true craftsmen with careful attention to detail. These uppers are finished with Mil-Spec type 3 hard anodizing which has the best likelihood of matching most mil-spec forged lower receivers. This is the proper upper to use for the following reproduction builds: - XM16E1 - M16A1 - Model 607

SKU 51655115222 Brand Palmetto State Armory Model Number 51655115222 UPC 51655115222 DETAILS 7" Barrel Length 4150V Chrome Moly Vanadium barrel 5.56 NATO Chamber 1 in 7" Twist Rate Forged Upper Receiver Phosphate Barrel Finish PSA patent-pending muzzle device Magpul "MOE" SL carbine-length M-Lok handguards FEATURES

UPC#: 818773023351 23-004-81721-006-DD Daniel Defense 23-004-81721-006 MK18 RIII 5.56mm NATO Black Upper Receiver Group

Finish : Anodized Barrel Length : 10.30 Barrel Contour : Government Item Length (Inches) : 17.500 Cartridge : 5.56x45 NATO Color : DDC Material : Aluminum Gas System Length : Carbine Quantity : 1 Item Weight (lbs) : 5.000 Hand : Right Item Width (Inches) : 2.250 Twist : 1-7 Make Model Fit : AR-15.Universal Item Height (Inches) : 2.250 Muzzle Threads : 1/2"x28 Receiver Style : Stripped Brownells sku: 430106317 MPN#: BROWNELLS-MK18 RIII UPC#: 818773023795

This BCA AR-15 complete 300 Blackout pistol length upper has a 10.5" heavy barrel with a parkerized 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 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. More Information SKU 528N-UASCH300PHB10.518P-10M3 Weight (lbs) 4.000000 Magazine Capacity N/A Length 10.5 Profile Heavy Barrel Twist 1:8 Finish Parkerized

PSA 16" Mid-length Freedom Stainless Steel 1/7 Dissipator - Without BCG or Charging Handle 16" Barrel Length .750" Gas Block Diameter Mid-length Gas System 416 Stainless Steel Barrel 5.56mm NATO Chamber 1 in 7" Twist Rate M4 Feed ramps A2 Flash Hider 7075 Forged Upper Receiver T-Marks No BCG or Charging handle SKU: 43633

This complete upper includes our new ATLAS R-ONE Handguard! The R-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 Upper Receiver 10.3″ ATLAS R-ONE M-LOK Handguard 11.5″ 5.56 CMV Barrel, Carbine Length

With this complete upper receiver, you can finish your new build with confidence that you can handle any situation or that you’re over-equipped. Aero Precision built these AR Handguards & Barrels with their ATLAS S-ONE Handguard and 20in 5.56 Rifle length barrel for top-shelf quality. The handguard included with this Aero Precision Complete Upper Receiver w/ ATLAS S-ONE Handguard includes indexing grooves at the 12:00 position for positive grip control during shooting sessions. Also, the top rail on these uppers is cut from the center of the top rail, reducing the weight.

Weight 8 oz Finish Anodized, Black Forward Assist Not Compatible Port Door / Dust Cover Not Compatible Receiver Material 7075 Aluminum Feed Ramps M4 MPN 4UPPER-G2 UPC 18465 SKU: 18465

For more than 50 years the famed silhouette of the M16/M4 has only had one major and several minor changes. Barrel lengths and buttstocks have changed, but more or less the evolution of America’s right arm has proceeded apace with each generation of warrior making her their own. In that time, the sight of the M16/M4 in the competent grasp of young Americans has meant hope to countless millions of people around the globe.

Weight 60 oz Barrel Finish Nitride / Melonite Barrel Profile Government / SOCOM Gas System Length Midlength Barrel Length 16" Cartridge Compatibility 308 Win Twist Rate 1-10 BCG / Charging Handle Not Included MPN APAR538705M22 UPC 840014609611 SKU: 8692

SKU 5165448513 Brand Palmetto State Armory Model Number 5165448513 UPC 5165448513 DETAILS PSA 16" MID-LENGTH 5.56 NATO 1:7 NITRIDE 13.5" LIGHTWEIGHT M-LOK UPPER - WITHOUT BCG OR CH - Barrel Length: 16" - Gas System: Mid - Barrel Profile: A2 - Barrel Steel: 4150 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

This BCA AR-15 complete 5.56 Nato rifle length upper has a 24" heavy contour barrel with a 416R stainless steel finish with straight flutes, and features a 1:8 twist rate, with a rifle 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 (Gen2) handle (patent protected). This 5.56 Nato upper is compatible with any mil-spec AR-15 lower. More Information SKU 8979N-UASCH556RHB2418SSF-15M3 Weight (lbs) 8.000000 Magazine Capacity N/A Barrel Length 24 Profile Heavy Barrel Twist 1:8

This Bear Creek Arsenal AR-15 Complete 5.56 Side Charging pistol upper has a 7.5" M4 barrel with a 416R stainless steel finish, and features a 1:7 twist, with a pistol length gas system. It includes the new 6.5" MLOK rail, a M4 flat-top 7075 billet aluminum upper receiver, a BCA Bolt Carrier Group, Flash Hider, and a right-side charging (Gen2) handle (patent protected). This 5.56 upper is compatible with any mil-spec AR-15 lower. More Information SKU 266N-UASCH556PM47.517SS-7M3 Weight (lbs) 3.250000 Magazine Capacity N/A Length 7.5 Profile M4 Contour Twist 1:7 Finish Stainless

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 Bear Creek Arsenal AR-15 Complete 5.56 Side Charging pistol upper has a 7.5" M4 barrel with a parkerized finish, and features a 1:7 twist, with a pistol length gas system. It includes a 6.5" 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 pending). This 5.56 upper is compatible with any mil-spec AR-15 lower. More Information SKU 913N-UASCH556PM47.517P-7M3 Weight (lbs) 3.250000 Magazine Capacity N/A Length 7.5 Profile M4 Contour Twist 1:7 Finish Parkerized

This BCA AR-15 complete 7.62x39 pistol length upper has a 7.5" heavy barrel with a parkerized finish, and features a 1:10 twist rate, with a pistol length gas system. It includes a 6.5" 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 7.62x39 upper is compatible with any mil-spec AR-15 lower. More Information SKU 547N-UASCH762PHB7.5110P-7M3 Weight (lbs) 4.100000 Magazine Capacity N/A Length 7.5 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 22" heavy barrel with a 416R Stainless Steel finish with spiral flutes, and features a 1:8 twist rate, with a rifle 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.  SKU 8982N-UA556RHB2218SSSF-15M3 Weight (lbs) 6.100000 Magazine Capacity N/A Barrel Length 22 Profile Heavy Barrel Twist 1:8 Barrel Finish Stainless Steel Material 416R Stainless Steel

8″ 5.7×28 AR-15 Complete Upper Product Specs: KM Tactical Billet Upper Standard Dust Cover 7″ MLOK Handguard w/ Integral Handstop 8″ 416R CMMG 5.7×28 Nitride Coated Barrel 1:9 Twist Nitride Coated 5.7×28 Bolt Carrier Group (BCG) Chrome-moly lined 1/2×28 Mini Slip Over Comp This will fit a standard AR-15 Lower, or CMMG Banshee Lower. Through The End of the NRA ANNUAL MEETING, This upper will receive Two 32 Round Magazines (Assuming you can posses them in your state).

COSMO-BCM-MK2-URG-MID-14-MCMR-13 COSMETIC BLEM UPPER RECEIVER GROUP. Please no returns due to cosmetic blemishes. *Cosmetic blemishes do not affect fit or functionality of the upper group. All BCM upper groups are head spaced and test fired for functionality prior to being offered for sale. All BCM® Upper Receiver Groups with a MCMR Handguard Include: One 3" Picatinny Rail Section One BCM MCMR Sling Mount Manufactured by Bravo Company MFG, Inc. (BCM)

100040692 100-040-692WB M4A1 Stripped SOCOM Upper Receiver Handguard Only 14.5in Cartridge: 5.56x45 Finish: Flat Dark Earth Style: Stripped Length: 14.5" Muzzle: 1/2-28 Twist: 1-7 Description Specs Superior Specs. Ultimate Performance. The Daniel Defense M4A1 SOCOM Block II Upper Receiver has been designed for those looking to match the specs and performance on the M4A1 SOCOM Block II carbines used by troops during Operations Iraqi Freedom and Enduring Freedom.

This BCA AR-15 complete 7.62x39 rifle length upper has a 18" heavy barrel with a parkerized finish, and features a 1:10 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 side charging handle (Gen 2, patent pending) and rear charge handle. This 7.62x39 upper is compatible with any mil-spec AR-15 lower. More Information SKU 9688N-UADCH762MHB18110P-15M3 Weight (lbs) 6.500000 Magazine Capacity N/A Barrel Length 18 Profile Heavy Barrel Twist 1:10 Barrel Finish Parkerized

COSMO-BCM-URG-MID-14-MCMR-13 About the BCM® Standard 14.5" Mid Length Complete Upper Receiver w/ MCMR-13 Handguard All BCM® Upper Receiver Groups with a MCMR Handguard Include: One 3" Picatinny Rail Section One BCM MCMR Sling Mount Manufactured by Bravo Company MFG, Inc. (BCM) These Barreled Upper Receiver Groups are designed for shooting professionals and responsible civilians with the Mil-Spec features for the demands of their duty. They are fully assembled, headspaced, and test fired.

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 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 587N-UASCH308MSC18110P-15MSR Weight (lbs) 8.000000 Magazine Capacity N/A Length 18 Profile Heavy Barrel Twist 1:10 Finish Parkerized

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-10 complete .308 rifle length upper has a 16" parkerized Heavy barrel, and features a 1:10 twist rate, with a mid-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 114N-UASCH308MHB16110P-15MSR Weight (lbs) 6.250000 Magazine Capacity N/A Length 16 Profile Heavy Barrel Twist 1:10 Finish Parkerized

100-041-773WB Enhanced FM9 4in Upper Cartridge: 9 mm Luger Finish: Black Style: Complete Contour: Medium Length: 4" Twist: 1-10 Description Specs Enhanced 9mm Pistol Upper Receivers with Set of MLOK Covers!

Rosco Manufacturing Launches BRAND NEW Upper Receivers! Rosco URGs are the culmination of the performance and synchronization of Rosco barrels and accessories. Rosco's original goal was to supply shooters with well-made barrels to improve their current platforms. Once that marker was successfully surpassed, Rosco turned its sights towards accessories and the ability to match them perfectly with its barrels to create one cohesive system built for accuracy.

Del-Ton AR-15 Pistol A3 Flat-Top Upper Assembly 5.56x45mm NATO 1 in 9" Twist 11.5" Government Contour Barrel Chrome Moly Matte with CAR-Style Handguard, Flash Hider. This Del-Ton Pistol Flat-Top AR-15 Upper Receiver comes complete and fully assembled, ready for installation onto any mil-spec lower receiver. The forged 7075 T6 Aluminum upper features an 11.5" Government Contour Barrel, Carbine-Length Gas System, F-Marked Front Sight Assembly, 2-Piece CAR-Style Handguards and an A2 Flash Hider.

SKU 5165449779 Brand Palmetto State Armory Model Number 5165449779 UPC 5165449779 DETAILS PSA 16" MID-LENGTH 5.56 NATO 1/7 NITRIDE DISSIPATOR UPPER - BLACK- NO BCG OR CH - Barrel length 16" - 4150V Chrome Moly Vanadium Barrel - Nitride Treated - 5.56 Nato Chamber - 1 in 7" twist - M4 feedramps - Forged upper FEATURES

This BCA AR-10 complete .308 Slick Side rifle length upper has a 16" 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 293N-UASP308MHB16110P-15MSR Weight (lbs) 6.250000 Magazine Capacity N/A Barrel Length 16 Profile Heavy Barrel Twist 1:10 Barrel Finish Parkerized Material 4150 Chrome Moly Vanadium