4150 Chromoly Steel
5.56/.223 Chambered in 5.56×45
1:7 Twist
1/2 by 28 Thread
M4 Contour Profile
Markings Spiral Engraved Near Break
.750 Gas Platform System
Tin Coating (Gold Titanium Nitride Finish)
Aesthetic Coating Which Improves Durability & Lubricity
M4 Feed Ramps
Carbine Length Gas System
Black Nitride Coating
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