Complete Uppers

  Ballistic Advantage 16" .223 Wylde BA Hanson Stainless Steel Midlength AR 15 Barrel w/ Lo Pro, Premium Series This .223 Wylde chambered 16 inch barrel is machined from 416R Stainless Steel with a bead blasted finish. Our Premium Series Barrels...

Aero Precision is an undeniable powerhouse in the AR-15 world, and that legacy continues with the new M4E1-T ATLAS R-One Complete Upper Receivers. Lightweight but rugged, Aero Precision’s ATLAS attachment system is slim in the hand but maintains...

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...

Ballistic Advantage, Upper, Black, AR-15, Anodized

Use what "THEY" use. The Daniel Defense MK18 Upper Receiver Group features the railed forend Daniel Defense currently provides to USSOCOM and a 10.3" Cold Hammer Forged Barrel. The MK18 Rail Interface System (RIS II) features the Bolt-Up System has...

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...

The MK111 PRO Upper, features the PWS long stroke piston system. Internally, this line offers the tried and true system. Featuring a free-float MLOK handguard, with the fully forged upper. The MK111 Pro is a no-nonsense tool for when you need a high...

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...

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 Daniel Defense M4 V7 S Upper Receiver Group is built around a Cold Hammer Forged 11.5" Government profile barrel and equipped with a DD improved Flash Suppressor to reduce flash signature. It features a carbine length gas system for smooth, reliable...

M4E1 Threaded 10.5" 5.56 Complete Upper Receiver w/ ATLAS S-ONE Handguard. This complete upper includes our new ATLAS S-ONE Handguard! The S-ONE line of handguards are designed with size and weight in mind, providing the perfect addition to your...