Moriarti AR-15 .300 AAC Blackout 5 inch Upper Receiver Medium Micro Length 1-7 Twist 5/8x24 A2 Flash Hider Nitride MAR-300-5-4-A2. Engineered for suppressor compatibility this upper features a durable 5-inch 4150 CMV barrel with a black nitride...
Moriarti AR-15 .300 AAC Blackout 5 inch Upper Receiver Medium Micro Length 1-7 Twist 5/8x24 A2 Flash Hider Nitride MAR-300-5-4-A2. Engineered for suppressor compatibility this upper features a durable 5-inch 4150 CMV barrel with a black nitride...