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Have two SD Barrels and would like to sell one. Both are Sabre Defense Stainless Fluted 1:8 Twist, 5.56 Nato Chamber, M4 ramps, Mid-length gas with .750 gas block. Profile is similar to SBR but with flutes and makes for a great balanced AR. 18" is popular with the 3-gun crowd. 20" is perfect for a calling rifle. I've built two other uppers with these barrels and they are 1/2-3/4 MOA capable.
1. New 18" $410.
2. Used 20" under 400 rounds. $350.
1. New 18" $410.
2. Used 20" under 400 rounds. $350.
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