Ar-15 Upper Receiver Lpr Mod 2 18'' Urx

The Knights Armament AR-15 upper receiver LPR Mod 2 with 18" barrel and URX handguard is a complete, combat-proven upper assembly built for serious shooters who demand mil-spec reliability and precision. KAC's reputation for fielding rifles in the harshest conditions translates directly to this receiver: every component—from the cold hammer-forged, chrome-lined barrel to the bolt carrier group—is engineered to perform when it matters. Whether you're building a precision rifle, upgrading an existing platform, or looking for a quality upper that handles both duty and distance shooting, the SR-15 MOD 2 delivers the kind of pedigree you expect from a manufacturer trusted by professional operators.

This 18" upper comes fully assembled and ready to pair with a lower receiver of your choice. The barrel is topped with KAC's 3-prong QDC suppressor-compatible flash hider, designed to work seamlessly if you run a can downrange. The URX M-LOK handguard provides modern accessory mounting and includes two anti-rotation quick-detach sling swivel sockets for tactical versatility. A complete Magpul M-LOK rail cover kit ships with the receiver, so you've got everything needed for a comfortable, controllable grip out of the box.

Sights are included: KAC Micro Front Sight up front and the company's 200–600m flip-up micro rear sight with windage and elevation adjustment at the rear. The bolt carrier group features KAC's improved E3.2 bolt with dual ejectors and rounded locking lugs paired with the proprietary barrel extension for reliable feeding and extraction. An extended-latch charging handle rounds out the package, giving you positive control when working the bolt. This is the kind of upper that rewards precision shooters and builders who refuse to compromise on quality.