Knighs Armament AR-15 URX 4 Free Float Forend 13 Inch M-LOK Aluminum Black

The KAC Upper Receiver Extending (URX) 4 rail is a fully modular free floating hybrid replacement forend for your AR-15 rifle. The rail features a continuous upper picatinny rail and is compatible with MLOK accessory attachment. This handguard is more stable with it's unique one-piece construction and integral barrel nut making it one of the most light weight configurable systems currently available. Knights handguards are made from high quality aluminum and feature a long lasting tough and durable anodized black finish. When you need professional grade parts equipment or gear and second best just isn't good enough turn to Knight Armament. Specifications and Features: Knights Armament Company 32304-1300 URX 4 Forend Assembly Free Floating Design 13 Overall Length Full Length Picatinny Top Rail M LOK Accessory Attachment Requires Lo-Profile Gas Block Integral Barrel Nut Aluminum Hardcoat Anodized Overall Weight 12.7 ounces Inside Diameter 1.55 Inch Outside Diameter 1.68 Inch Matte Black Includes: Installation Wrench Shim Kit Instructions