9mm M4 CMMG Complete Upper. Featuring Mil-Spec A3 Receiver, 4140 WASP Barrel with 1:10 twist. The 9mm ramped bolt uses a standard AR-15 or M16 hammer. Do not use with the dedicated 9mm hammer. It also features "F" marked front sight.
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Gauge/Caliber : 9mm
Length : 16"
Model : Tactical
Sights : Front
Finish : Black
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