Upper Receivers

Features :M4 Feed RampsForward AssistUpper Receiver

The STT PILLAR upper receiver is the lightest billet upper available today! STT wanted to create something better, something different. Being better was not enough -- STT needed to design an upper that overcame the shortcomings seen in the current...

Features :Dust cover, forward assist, and brass deflector omittedCompatible with standard AR15-spec bolt carrier groups, charging handles, and barrelsFlat-top Picatinny rail accommodates mounting optics or other accessories

Introducing the new GVAC system from Gemtech. Significantly reduce the amount of gas blowback youll experience when shooting suppressed with its patented design. The re-imagined barrel profile, enhanced bolt carrier profile, enhanced bolt carrier group,...

Advantage Arms Conversion Kit: Convert your 9mm/.40 S&W Glock down to 22LR so trips to the range dont break the bank. Or if you want to teach your kid the fun of shooting but dont want him/her to start on the 9mm" a conversion kit is a great learning /...

Rock River Arms complete Tactical Carbine upper is an A4 upper chambered in .458 SOCOM with a 16" chrome moly bull barrel and 1:14 twist. Additionally the upper comes with a complete bolt carrier group, charging handle assembly, 15" RRA lightweight M-Lok...

Troy Industries AR-15 A4 Upper Receivers are lightweight and ultra-low profile. Developed specifically for todays war fighter and Law Enforcement led by Special Operations field requirements. The M-Lok SOCC handguard is lightweight with an ultra-low...

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...

Looking to build a high-quality retro looking AR? Start your project with a complete A1 upper receiver anodized. Comes with the standard features of a Mil-Spec upper receiver and is forged from 7075-T6 aluminum with a black hard coat anodized, tough...

Battle Arms Development Workhorse, Complete Upper Receiver, 556nato, 16" Barrel, Fits Ar-15, M-lok Handguard, Anodized Finish, Sniper Gray, Includes Bad Rack-15 C Ambidextrous Charging Handle And Ar15/m16 Bcg Wh-ur16g-y-15cModel: WORKHORSEProduct Type:...

The Radical Firearms 5.56mm upper is a complete MIL-STD upper ready to drop on any MIL-STD lower Receiver. Perfect for the novice or advanced shooter wanting to finish out that build and hit the range. No matter what your style of shooting is, Radical...

Sharps Bros. Sbur04, Billet Upper Receiver, Fits Ar15, Black Finish, Includes Forward Assist And Dust Cover Sbur04Model: SBUR04Product Type: UpperFit: AR-15Description: Billet