Complete Uppers

MCX-SPEAR LT 11.5 AR CONVERSION KIT 5.56 NATO-BLACK This complete kit will convert any MIL-SPEC AR-15/M4 Lower into the top-performing MCX-SPEAR LT. Included items: Complete 11.5" 5.56 NATO upper assembly includes our removable 3-prong flash-hider...

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...

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...

TRIARC Systems 13.9” RECCE Complete Upper Receiver, 5.56 – Black / Carbon Gray - Black (Anodized) Forged Upper Receiver- 13.9" TRACK 2.0 RECCE Profile Barrel, 5.56mm, 1:7 twist Barrel, 1/2×28 Muzzle Thread Pitch- 13" TRIARC Interlok...

This Aero Precision M4E1 Threaded upper receiver group comes completely assembled with 14.5” 5.56 barrel and the ATLAS S-ONE M-LOK handguard. This barreled upper receiver group does not include BCG or charging handle allowing you to choose your...

This complete upper bundle has everything you need to hit the ground running on your next build! Included ATLAS Handguard, Black Nitride BCG, BREACH Ambidextrous Charging Handle, and VG6 Gamma Muzzle Device give you all the upgrades you need out of the...

This Aero Precision M4E1 Threaded upper receiver group comes completely assembled with 16” 5.56 barrel and the ATLAS S-ONE M-LOK handguard. This barreled upper receiver group does not include BCG or charging handle allowing you to choose your...

Black Rain Ordnance, SPEC15 Forged Aluminum Upper Receiver, 16" 4150 Chromoly Carbine Length Gas Barrel, A2 Fixed Front Sight, Mil-Spec Phosphated BCG, "LET IT RAIN" Dust Cover  

High quality components and precise manufacturing makes Colt Products ideal for both new shooters and experienced gun owners. The durability, reliability and excellent build quality will provide years of service you can count on...

High quality components and precise manufacturing makes Colt Products ideal for both new shooters and experienced gun owners. The durability, reliability and excellent build quality will provide years of service you can count on. Colt's Manufacturing,...

Geissele Automatics, URG-I, Near Clone, Complete Upper Receiver, 556NATO, 11.5" Barrel, 1:7 Twist, Pinned and Welded Surefire 4 Prong Flash Hider, Desert Dirt Color 10.5" SMR MK16 M-LOK Free Float Handguard, Desert Dirt Color Geissele Airborne Charging...

10.5” Gen 3 Shorty 300BLK CHF Complete Upper Barrel 10.5” 300BLK cold hammer forged with 1:7 twist Our chrome lined barrels are cold hammered forged and made with the material callouts and manufacturing process for the M249 Machine Gun...