The KAC Upper Receiver Extending (URX) 3.1 rail is a free floating, hybrid modular replacement forend for your AR-15 rifle. The rail features a continuous upper picatinny rail and short sections at its front for accessories. Furthermore, the forend eliminates rail sections in the center for a lighter platform and more comfortable grip. Moreover, the forend features four integral QD sling swivel sockets for ambidextrous sling attachment points. The rail is made from high quality aluminum and features a long lasting tough, and durable anodized black finish.

Features and Specifications:
Manufacturer Number:30590
URX 3,1 Forend Assembly
Free Floating Design
10.75" Overall Length
Requires use of Lo-Profile gas block
Requires use of KAC URX Barrel Nut Wrench (PN: 20495, Sold Separately)
Aluminum
Hardcoat Anodized
Overall Length 10.75"
Overall Weight 11.4 ounces
Matte Black

Fits:
This URX 3.1 rail requires a low profile gas block. Disassembly of the rifle's gas system and removal of the factory barrel nut will be necessary. This forend uses a proprietary barrel nut that MUST be installed using a KAC URX Barrel Nut Wrench (PN: 20495, Sold Separately)