The Adams Arms Gas Piston Upper Receiver was designed specifically for Adams Arms with .180 gas tube hole which allows use of Adams Arms gas piston system without the need for a bushing. Upper receiver is machined from aluminum to military specifications and has M4 feed ramps and T-marked A3 f…
Adams Arms Gas Piston Upper Receiver Assembled AR-15 A3 Matte | AMMO GATE
$109.99
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