223 Remington & 5.56x45mm NATOLess than 16" Barrel
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6528 UPC: 852548002592
Daniel Defense
$1,412.00Daniel Defense Upper, MK18 URG, 556NATO, 10.3" Hammer Forged Barrel , 1:7 Twist, Flat Top, Flat Dark Earth Finish 23-004-08013-011$1,412.00