Upper Receivers

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 it's guarantee to help you stand out in a crowd. Odin Works, Billet...

Includes Mk3 ejection port cover, rod, and spring. CMMG, Ejection Port Cover Kit, Mk3, Ejection Port, Rod, and Spring, Black Finish .308 Ejection port cover Spring Rod

The M5 .308 Stripped Upper Receiver is the perfect upper for your big bore rifle build. Forged from 7075- T6 aluminum, this stripped upper is precision machined to accept standard .308 components. Match this with our M5 .308 lower receiver for a solid...

The M5 .308 Assembled Upper Receiver comes with both the port door and forward assist hardware preinstalled. Forged from 7075-T6 aluminum, this assembled upper is precision machined to accept standard .308 components and is the perfect upper for your big...

The M5 .308 Assembled Upper Receiver comes with both the port door and forward assist hardware preinstalled. Forged from 7075-T6 aluminum, this assembled upper is precision machined to accept standard .308 components and is the perfect upper for your big...

UPPER: MACHINED FROM 7075 T6 FORGING MIL-STD 1913 RAIL FOR MOUNTING OPTICS/ACCESSORIES M4 EXTENDED FEED RAMPS TYPEIII HARDCOAT ANODIZED WEIGHS 6.8 OZ   LOWER: FORGED AR-15 LOWER RECEIVER CONSTRUCTED FROM 7075 T6 WEIGHS 8 OZ LOWER IS...

New for 2019 is our Palouse-Lite Forged Receiver Set that is part of our new Builder Series. It is available as a complete set or as upper or lower only. The Builder Series will offer a vast number of 2A Armament components that have been made with the...

The ZEV Technologies AR15 Billet Receiver Set was designed to complement the enhanced features of the ZEV rifle product line while retaining compatibility with most mil-spec accessories to give you the most options for completing your build...

The ZEV Technologies Forged AR-15 Upper Receiver comes stripped and ready for your next custom AR build. ZEV starts with high-quality 7075 T6 aluminum forgings and final machines them to better than mil-spec dimensions held to .001" tolerances,...

Knights Armament Company SR-15 CQB Mod 2 Complete Upper 11.5" 556 The SR-15 E3 Mod 2 series' 5.56 mm NATO barrel is manufactured for military grade durability, and is free-floated inside a URX4 M-LOK handguard. An improved E3 round-lug bolt design both...

Sig Sauer SIG MCX Rattler Upper 300 Blackout Includes 5.5" Barrel M-Lok Handguard Side Folding AR Buffer Tube Knuckler Includes Charging Handle Bolt Carrier Sig Duo Matchlite Trigger 1913 Adapter to convert Standard AR lower to accept MCX...

Noveske Gen 1 Matched Upper/Lower Receiver Set Factory Matched Set Forged Aluminum Construction Hard Coat Type III Anodized Compatible with all Mil-Spec AR-15 parts and accessories Includes Noveske Marked Takedown/Pivot Pins Trigger Guard...