Upper Receivers/Conv Kits

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...

Barrett Mrad Barrel Conversion Kit, 338lap, 26, 10rd 19149

Convert your Glock into a .22 or with an Advantage Arms conversion kit. Advantage Arms Glock Conversion Kit is Advantage Arms most accurate conversion kit for Glock. Does not fit Gen 4 Glocks...

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...

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...

Agency Arms was created in January of 2015 and created by weapons operators themselves interested more in the functionality than the visual appeal. Agency Arms is a Veteran and LEO owned...

The proprietary UXR, or User XChange Rifle, is the pinnacle of firearm innovation. This revolutionary system offers unmatched modularity and performance. The patent-pending XCHANGE system allows the...

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...

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...

CMMGs Upper Receiver Assembly is made from billet 7075 T6 AL.Features :For AR10 riflesBillet 7075 T6 Aluminum, Cerakoted Armor Black

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...

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...

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...

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,...

This EPC-9 Complete Upper Receiver comes standard with the ATLAS S-ONE Handguard. The S-ONE handguards are designed with size and weight in mind, while still providing plenty of real-estate to...

The M4E1 Threaded Upper Receiver features a new angular machined design that helps it stand apart from standard mil-spec upper receivers. This upper receiver features the same enhanced body profile...

Black Rain Ordnance, Inc. is a precision rearms manufacturer specializing in the modern sporting rifle design. Founded in 2009 with a benchmark to only manufacture weapons we would personally be...

Meet CMMGs newest long-range offering. Chambered in Hornadys new 6mm ARC (Advanced Rifle Cartridge), the CMMGs RESOLUTE upper receiver group allows you to pair this exciting caliber with your...

Features :M4 Feed RampsForward AssistUpper Receiver

Lantac Usa Llc Sf15 Recon, Complete Upper Receiver, 223 Wylde, 16" Barrel, Fits Ar15, Anodized Finish, Black 01-fa-223-recon-uprModel: ReconFinish/Color: AnodizedFit: AR-15Caliber: 223 Wylde