Brownells CAR-15 And M4 Milspec Receiver Extension is the perfect size for a rattle free butt stock mount. The tube has the precise diameter of 1.146 inches for a perfect fit with mil-spec stocks. A CAR-15 And M4 Milspec Receiver Extension allows you to mount a milspec carbine collapsable stock onto a carbine, or convert one with a fixed buttstock. Five notches on the underside allow your carbine stock to be the perfect length for you. The receiver allows you to quickly collapse and extend the stock to the perfect length for you! Precision machined aluminum for a snag free mechanism. The hard coated anodized aluminum will stand up to the beating a rifle can take.
Brownells CAR-15 And M4 Milspec Receiver Extension Features:
- Outer diameter of 1.146 inches
- Five adjustment notches
- Quickly collapsable
- Hard coated anodized aluminum
- Made for milspec butt stocks