Krebs Custom Adapter Block for Yugoslavian Rifles Note: Will not fit slant back receivers. Some rifles may require a modified block if rivets are protruding. These adapters are shaped and contoured to fit most Yugoslavian rifles. Made of 6061-T6 aluminum that’s been hard-coat anodized, they’re designed to allow owners of Yugoslavian rifles to mount alternative buttstocks on their rifle. Includes installation screw & lockwasher. NOTE: Screw should be installed from the inside of the receiver to the adapter. Installation Video: https://www.youtube.com/watch?v=gV55il4elgY
