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BCA Complete Upper Assembly 9MM, 16″ 4150 Black Nitride Barrel, 1:10 Twist w/ 15 M-LOK
BCA AR-15 Complete Upper Assembly, 24″ 4150 Parkerized Heavy Barrel, Spiral Fluted, .223 Wylde, Rifle Length Gas System, 1:8 Twist w/ Lightweight Keymod – NON-THREADED
BCA AR-15 Complete Upper Assembly, 16″ Parkerized 4150 Steel Heavy Barrel, Diamond Fluted, .223 Wylde, Carbine Length Gas System, 1:8 Twist w/ 12″ M-LOK Rail
BCA AR-15 Complete Upper Assembly, 16″ Parkerized 4150 Steel Contour Barrel, 5.56 NATO, 1:8 Twist, w/ Standard Hand Guard, Front Sight
BCA AR-15 Complete Upper Assembly, 16″ Parkerized 4150 Steel Contour Barrel, .223 Wylde, 1:7 Twist w/ Standard Hand Guard, A2 Front Sight
BCA AR-15 Complete Upper Assembly, 16″ Nitride 4150 Steel Contour Barrel, 5.56 NATO, 1:8 Twist, w/ Standard Hand Guard, Front Sight
BCA AR-15 Complete Upper Assembly, 16″ 4150 Parkerized M4 Contour Barrel, .300 Blackout, Carbine Length Gas System, 1:7 Twist w/ 15″ M-LOK
BCA AR-15 Complete Upper Assembly, 16″ 4150 Black Nitride HeavyBarrel, .223 Wylde, Carbine Length Gas System, 1:8 Twist Rate w/ 12″ M-LOK
Aero Precision M4E1-E Complete Upper, 20″ 6.5 Grendel SS Barrel, EM-15 HG Gen 2 – Anodized Black
Aero Precision M4E1-E Complete Upper, 18″ 6.5 Grendel SS Barrel, EM-15 HG Gen 2 – Anodized Black
Aero Precision M4E1-E Complete Upper, 16″ 6.5 Grendel SS Barrel, EM-15 HG Gen 2 – Anodized Black