Upper Receivers

The durability, reliability and excellent build quality of Colt uppers will provide years of service you can count on.Features :Upper ReceiverM-LOK Handguard223 Rem/556NATO

Spikes complete upper assemblies will arrive to you inspected, tested, and ready to drop-in and go to work. Spikes maintains the same high standard of tolerances and attention to detail as the uppers they use for complete rifle builds. Every built upper...

Rock River Arms A4 Coyote Carbine upper comes chambered in .300 AAC / Blackout with a 16" chrome moly 1/8twist barrel. Additionally this upper includes a RRA 12.5" M-Lok compatible lightweight free float rail and a Smith Vortex flash hider (5/8-24...

The Luth name is synonymous with Experience, Expertise, Knowledge, Innovation, and has been a driving force in the firearm industry for close to 40 years. Starting as a machinist 40 years ago Randy Luth founded D.P.M.S. / Panther Arms and grew the...

Luth-AR stripped .223 Remington receivers are A3 flattop with M4-type feed ramp, 12 position Picatinny accessory rail for mounting scopes or flip-up sights. Shell deflector, forward assist housing, and ready for an ejection port cover. Precision machined...

Advantage Arms Conversion Kit: Convert your 9mm/.40 S&W Glock down to 22lr so trips to the range dont break the bank. The MOD series is meant to fit Glock 17/22 Gen 5 and includes two 10 round magazines, a 4.49" barrel, a range bag, and a recessed cut...

Rock River Arms RRAGE 3G A4 carbine upper comes chambered in 5.56mm NATO. This extruded aluminum upper receiver comes with a port door and no forward assist. Additionally, this upper is equipped with a RRA 15" RRAGE 3G M-Lok compatible handguard, a 16"...

Advantage Arms Conversion Kit: Convert your 9mm/.40 S&W Glock down to 22lr so trips to the range dont break the bank. The MOD series is meant to fit Glock 17/22 Gen 1-3 and includes two 10 round magazines, a 4.49" barrel, a range bag, and a recessed cut...

This AR15 Complete Upper is the same upper receiver used in the AERO M16A4 Special Edition Complete Rifle and features a 20" 5.56 Barrel with Pinned FSB, A2 Handguard and A2 Detachable Carry Handle.Features :Upper: Standard M4 Upper Receiver,Barrel: 20"...

Spikes Tacticals mission is simple, Spikes strives to build the highest quality products and offer them at the best possible price to the consumer. It doesnt matter if you are simply a gun enthusiast, a competitive 3 gun shooter or a military or law...

When accuracy, perfection, and reliability matters ODIN Works Billet Upper will give you a distinct advantage. With its sleek design No Forward Assist and low profile brass deflector its guarantee to help you stand out in a crowd.Features :For...

YHM has long been a manufacturer of quality AR-15 Upper Receivers and is very proud to offer their A3 Upper Receivers. These uppers were designed, and are MACHINED 100% IN HOUSE by YHM and are forged from 7075-T6 aluminum. Fit and function with your...