These firearm-specific blocks allow the direct mounting of ACE Skeleton Modular Stocks or an ACE folding mechanism and Modular Stock. Use of a Modular Receiver Block and an ACE AR-15 Stock Interface allows AR-15 Stocks to be easily mounted to the firearm.
For all Bulgarian milled receivers and pre-ban milled receivers with the lower tang removed. Includes 1.25” sling mount. 1.480” length or receiver block extending from back edge of receiver.