The CQR polymer lower receiver, with either Mod 1 or Mod 2 trademarks, are standard replacement receivers for all CQR AEGs, but will fit all KM4 rifles.

You can specify whether you would like the Mod 1 or Mod 2 trademarks on the side of the receiver by entering a note at checkout. If no note is present, you will receive either receiver, but please note that the receivers are otherwise identical.


Weight 0.2 lbs
Dimensions 10 × 1.5 × 6 in

KM4 AEG Series, KM4 KR Series