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QUALIFIES FOR FREE SHIPPING!This upper features a 1913 top rail, M4 feed rampHard-coat anodized to M..
Kit Includes:Ejector SpringEjector PinForward Assist SpringForward Assist PinForward Assist Pawl Spr..
QUALIFIES FOR FREE SHIPPING!This is a non T-marked stripped upper featuring a 1913 top rail, M4 feed..