Rat Worx, Inc.

This is for the MSAR AUG Clone, not the original Steyr AUG. The Rat Worx hybrid bolt is unlike any other Aug bolt on the market. This new Rat Worx Left Hand bolt uses AR15 M16 parts. Extractors, ejectors, springs and pins. They work great and they love steel case ammo. Easy on the brass.

By using AR15 parts for your bolt we provide you with proven reliability, familiar parts, and easy to find replacements compared to the original bolt parts in the MSAR.