CM4 5.56 Forged Upper Receiver
CM4 5.56 Forged Upper Receiver
CM4 5.56 Forged Upper Receiver
CM4 5.56 Forged Upper Receiver
HK Armament Systems

CM4 5.56 Forged Upper Receiver

Regular price $105.00 $0.00 Unit price per
Shipping calculated at checkout.

-Machined to MIL spec from 7075 T6 forgings
-Top MIL-Std 1913 Rail
-Hardcoat Anodized per MIL-A-8625F, Type III, Class 2
-For Use with M4 Barrel extensions
-Assembled Upper Receivers come with ejection port cover and forward assist installed
-Made in America on American-made machines
-Weight: .8.3oz