Midwest Industries MI-N16CRM15-U Nitride Lightweight 16'' Upper Receiver Group, M-LOK, .223 Wylde 1/8, CRM

.625 Gas Block Diameter. M4 feedramps. Mid-Length Direct Impingement Gas System. Combat Series M-LOK Handguard. MI A2 Flash Hider.

1/7 Twist, 4150 Chrome Moly. M4 feedramps. Carbine Length Direct Impingement Gas System. Combat Series M-LOK Handguard. MI Blast Can Installed.

MI FORGED UPPER RECEIVER: Forged from 7075 T6 aluminum Precisely machined to M16/M4 specs M4 feed ramps Hard-coat anodized mil 8625 type 3 class 2 finish .250 take down pins MI M16 bolt carrier...

MI FORGED UPPER RECEIVER: Forged from 7075 T6 aluminum Precisely machined to M16/M4 specs M4 feed ramps Hard-coat anodized mil 8625 type 3 class 2 finish .250 take down pins MI M16 bolt carrier...

Machined from 4140 Ordnance grade steel. Durable Black Oxide finished for years of use. Will not mar or damage exterior of upper receiver. Receiver mounted sights can be left installed. Can be...