PolymAR-15 Kit 4

$564.95

Includes Upper & Lower Receiver (Black), Ejection Port Cover, Pin, & Spring, with X7 Assembly Rod*, NP3 FA Milspec BCG, NP3 MilSpec Lower Receiver Parts with NP3 MilSpec Trigger Assembly.

*You must use the X7 Assembly Tool to install your barrel and flash hider to keep your warranty in tact.

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