Description
BCM MK2 Receiver Extension for your AR15″ M16″ M4. Machined from 7075T6 and manufactured to Mil-Spec dimensions and specifications. Mil-Spec receiver extensions have a slightly smaller dimension where the stock slides on. *NOTE* These buffer tubes require a rifle action spring and specific BCM MK2 buffer” carbine and rifle buffers will NOT work.
Fits AR “8 Position” “Can Reduce Felt Recoil” “Requires Proprietary Buffer Weight”
