Selling my upper build, Geissele 14.5 barrel with their bomb proof gas block assembly on a very rare Knights Armament URX 3.1 handguard with Colt receiver and KAC 3 prong muzzle device. Professionally assembled. No BCG and charging handle. Shot less than 100 rounds through the barrel only. Excellent condition. $700 firm/no trades please
ATTACH=full]263816[/ATTACH]
ATTACH=full]263816[/ATTACH]
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