Knights Armament Company AR-15 Upper Receiver Extending 4 Forend Assembly KeyMod 8.5" Length Aluminum Anodized Black 30738

Knight's Armament Co
819064011378
30738
2-KNAC30738
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The new and improved Upper Receiver Extending (URX) just got better with the new generation 4 forend assemblies. The URX 4 features the new KeyMod mounting system and is built stronger and more stable with it's unique one-piece construction making it one of the most lighweight configurable systems currently available.

Specifications and Features:
One-piece aluminum construction
Anodized, black finish
8.5" length
9.2 ounces
1.55" Inside diameter
1.68" outside diamter (side-to-side)

Includes:
Each URX 4 Rail comes complete with an installation wrench, shim kit and instructions.