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Shop 2 Deals on Colt 5.56x45mm NATO Receiver Parts

Browse Colt 5.56x45mm NATO Receiver Parts for sale at the lowest prices online.

Complete Uppers

Upper Receivers

Colt EPR 5.56 M-LOK 16" AR-15 Upper, Black - LE6920EPR-CK - Colt

Colt EPR 5.56 M-LOK 16" AR-15 Upper, Black - LE6920EPR-CK

$1,266.85 $881.99

Colt M4 14.50" Classic Upper 5.56x45mm 1:7 Carbine-Length no BCG&CH, Black - Colt

Colt M4 14.50" Classic Upper 5.56x45mm 1:7 Carbine-Length no BCG&CH, Black

$582.99 $479.49

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