Upper Receivers

Alexander Arms UHU65BL Hunter Complete Upper 6.5 Grendel 18" Black Aluminum Cerakote Receiver M-LOK Handguard for AR-15

The Alexander Arms AR15 Standard Rifle Upper was developed to function as the ideal item for anybody trying to find an exceptional option. With a black cerakote finish, and a M-Lok handguard, you could get this upper to complete your build. Includes...

Savage MSR15 Competition Upper Receiver .223 Rem/5.56mm 18" Barrel Black

Features: Savage by Proof Research 18” carbon fiber wrapped stainless steel barrel Custom forged upper receiver Tunable Muzzlebrake Low-profile adjustable gas block Forward Assist Free-float M-LOK forend with picatinny rail Includes bolt carrier...

CMMG RESOLUTE UPPER GROUP 5.7X28 16.1 BLK

Personal defense calibers like 5.7x28mm have become a big thing in the last few years and if you're looking for PDW ballistics and the classic style and balance of a carbine then you're in luck. Combine this RESOLUTE Upper Group with either our Mk57...

CMMG Fixed Ejector Upper Group for BANSHEE Mk4 Mk9 Mk17 & MkGs 9mm Luger 8" Barrel Armor Black

Combining carbine-like ballistic performance and compact size this 8” BANSHEE™ upper group is what you need for the ultimate 9mm AR. Not only does this 9mm upper utilize CMMG®’s radial delayed blowback technology but shooters also...

Spikes STU5435R2S Complete Upper 5.56x45mm NATO 16" Black Phosphate/Midlength Barrel, 7075-T6 Aluminum Black Receiver, 12" SAR3 Free-Floating Handguard for AR-15

The Spike's Tactical ST-15 Enhanced upper line-up is designed as a fully Mil-spec compliant upper series for law enforcement. This same level of quality and performance is now available to everyone, all at a price range that is affordable to shooters of...

BFH 14.5'' Mid Length Upper Receiver Group w/ BCM KMR-ALPHA 13'' Handguard

All of the same unique features and advantages of the widely favored BCM KMR Handguard, now offered in 100% Aluminum.

Bushmaster XM15 A2 Complete Upper Assembly - Black | 5.56NATO | 20" Barrel | A2 Handguard w/ Carry Handle | A2 Flash Hider

XM15 A2 20" CARRY HANDLE COMPLETE UPPER ASSEMBLY. Here's the final pieces you'll need to complete that Retro / M16 lookalike rifle youve been working on. We've made it easy with our complete upper XM15 A2 upper assembly that includes all the authentic...

SOLGW M4-EXO3 13.7" 5.56 URG

Sons of Liberty Gun Works believes in Quality Mil-Spec or better parts. They believe there is no substitute for quality and that your gun should be built right the first time, ready for hard use right out of the box. They believe a quality, accurate and...

UPPER GROUP RESOLUTE Mk4 5.56X45MM NATO 14.5 P&W Sniper Grey

UPPER GROUP RESOLUTE Mk4 5.56X45MM NATO 14.5 P&W Sniper Grey

Radian Weapons R0195 Model 1 Upper & Handguard Set Multi-Caliber 7075-T6 Aluminum Radian Black Cerakote Receiver, 10" Magpul M-LOK Handguard for AR-15

The Radian Model 1 Upper Receiver and Hand Guard are precision CNC machined as a matching set, structurally reinforced in critical areas for improved strength and rigidity. The upper receiver is cut from billet 7075-T6 aluminum and assembled with dust...

ALEX PISTOL UPPER 50BEO 12 BLK

Flat-top receiver with 12-inch barrel and carbine-length A2-type handguard. 1:20 twist rate. Direct impingement operating system. Complete upper receiver comes with 49/64-20 TPI threaded muzzle. This upper receiver assembly is intended for use with a...

UPPER GROUP BANSHEE Mk3 .308WIN 12.5 Armor Black

UPPER GROUP BANSHEE Mk3 .308WIN 12.5 Armor Black

BAD 16 UPPR AUTH ELITE 556 AMBI BLK

The heart of the BAD Authority Elite upper receiver is the billet BAD556 7075-T6 aircraft grade aluminum receiver with integral ambidextrous controls and free-float rail handguard with M-LOK attachment points at 3, 6, and 9 o'clock positions. At 12...

BAD 16 UPPR AUTH ELITE 556AMBI C BLK

The heart of the BAD Authority Elite upper receiver is the billet BAD556 7075-T6 aircraft grade aluminum receiver with integral ambidextrous controls and free-float rail handguard with M-LOK attachment points at 3, 6, and 9 o'clock positions. At 12...

Patriot Ordnance Factory Minuteman Complete Upper 5.56x45mm NATO 10.50" Black Nitride Barrel Aluminum Patriot Brown Receiver 9" M-LOK Handguard Lo Pro DI Gas Block (Mid Length)

Patriot Ordnance Factory Minuteman Complete Upper 5.56x45mm NATO 16.50" Black Nitride Barrel Aluminum Patriot Brown Receiver 14.50" M-LOK Handguard Lo Pro DI Gas Block (Mid Length)

If you're looking to build something on an AR15 platform and want the absolute best semiautomatic tactical rifle upper, consider building around this POF-USA Minuteman upper. The Patriot Ordnance Factory Minuteman provides the end user with some of the...

UPPER GROUP BANSHEE MkG 45 ACP 5 Titanium

UPPER GROUP BANSHEE MkG 45 ACP 5 Titanium

UPPER GROUP ENDEAVOR Mk4 5.56x45MM NATO 18 Tungsten

UPPER GROUP ENDEAVOR Mk4 5.56x45MM NATO 18 Tungsten

Spikes STU5025M4S Complete Upper 5.56x45mm NATO 16" Black Phosphate Barrel, 7075-T6 Aluminum Black Receiver, M4 Double Head Shield Handguard for M4 Carbine

The Spike's Tactical ST-15 LE upper line-up is designed as a fully Mil-spec compliant upper series for law enforcement. This same level of quality and performance is now available to everyone, all at a price range that is affordable to shooters of any...

UPPER GROUP RESOLUTE Mk4 300BLK 14.5 P&W Armor Black

UPPER GROUP RESOLUTE Mk4 300BLK 14.5 P&W Armor Black

UPPER GROUP RESOLUTE Mk4 300BLK 14.5 P&W Midnight Bronze

UPPER GROUP RESOLUTE Mk4 300BLK 14.5 P&W Midnight Bronze

UPPER GROUP ENDEAVOR Mk4 22 ARC 20 Charcoal Green

UPPER GROUP ENDEAVOR Mk4 22 ARC 20 Charcoal Green

UPPER GROUP ENDEAVOR Mk4 22 ARC 20 Sniper Grey

UPPER GROUP ENDEAVOR Mk4 22 ARC 20 Sniper Grey

CMMG RESOLUTE MK3 UPPER GROUP 308WIN 16.1 BLK

Build the ultimate .308 Win carbine with the RESOLUTE Mk3 upper group. Combining heavy hitting performance with styling in a league of its own there is no doubt that this upper will set your rifle apart from the crowd. There can be a lot of confusion...