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Here we talk AR-15 Barrel Length & Twist Rate. Nate Murr, Inventor of the Gripstop, and I talk AR-15 short barrel vs longer barrel, twist rate, muzzle velocity, M855 62gr Green Tip and M193 55gr ammo and much more. Do you want a longer or shorter barrel on your AR-15 build? We hope we answered most of your questions on building an AR-15 and barrel length and twist rate. Leave a comment below. Thanks!
Barrel Lengths discussed: 10.5", 14.5", 16", 18" and 20"
Twist Rates Discussed: 1 in 7, 1 in 8, 1 in 9, 1 in 10 and 1 in 12
Ammo Discussed: M193 55gr Ball, M855 62gr Green Tip, SS109 77gr Sierra Match King
Check out Nate's Instagram:
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