Complete Uppers

This complete upper includes Aero Precision's new ATLAS R-ONE Handguard on their billet-style threaded M4E1 upper topped off with a 1/8" twist 416R stainless steel barrel chambered in .223 Wylde designed to wring the most accuracy while maintaining full...

Knights Armament Company, SR-15, Mod2, Complete Upper, 556NATO, 16", Black, Upper Receiver Extending Free Floating Barrel System, Upper Receiver Assembly E3 Mod 2, SR-15, M-LOK Barrel: 16.1" (40 cm) 1:7 Twist, Hammer Forged, Chrome Lined Caliber: 5...

The Aero Precision AR-15 barreled upper receiver is built around the M4E1 Threaded upper receiver designed for use with standard barrel nut systems. The receiver is forged from 7075-T6 aluminum and precision machined to M4E1 specs to ensure proper fit...

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

The Complete Upper is constructed of billet machined 7075-T6 aluminum with proprietary Extended aluminum hand guard w/ Magpul M-LOK mounting system and integrated upper/hand guard stainless steel anti-rotation pin. Its match grade 416R stainless steel...

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 from billet 7075-T6 aluminum and assembled with dust...

CMMG, Banshee 200 Upper, 9MM, 8" Barrel, Black, 2 Magazines, 30Rd Precise Manufacturing Long Term Reliability Durable Construction High Capacity CMMG IS A LEADING MANUFACTURER OF AR-15 RIFLES, 22LR AR-15 CONVERSION KITS AND ACCESSORIES.

Primary Weapons Systems, MK1 Mod 1 Complete Upper, 223 Wylde, 7.75" Stainless Barrel, 1:8 Twist, PWS Enhanced Bolt Carrier Group, M-Lok, Charging Handle, Black Barrel Length: 7.75" Caliber: .223 Wylde Weight: 3 lb. 8 oz. Length: 17" Piston...

Maxim Defense Industries, PDX Complete upper, 556NATO, 5.5", Black, AR Rifles HATEBRAKE installed under handguard M-slot compatible handguard Military grade materials [6Al-4V Titanium, 17-4 Stainless Steel, 7075 and 6061 Aluminum] HK height rail...

The Daniel Defense M4A1 Upper Receiver Group features the M4A1 Rail Interface System (RIS II), which has been in use by US Special Operations Command (SOCOM) for the SOPMOD II Weapons System since 2005. This two-piece, free-floating rail system allows...

The Daniel Defense M4 V7 Upper Receiver Group is built around a Cold Hammer Forged 16" Government profile barrel and equipped with a DD improved Flash Suppressor to reduce flash signature. It features a mid-length gas system for smooth, reliable cycling...

The MK1 MOD 1-M line, revamped for 2018, features the PWS long stroke piston system. Internally, this line offers the tried and true system that PWS owners have grown to know and love. Featuring a free-float MLOK handguard, forward assist controls, and a...