Rat Worx, Inc.

This Rat Worx Hybrid Bolt fits the Steyr AUG, not the MSAR STG-556/E4. The Rat Worx Hybrid Right 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 Steyr.

DISCLAIMER: This product is not manufactured, authorized, endorsed, or warranted by STEYR ARMS, Inc. STEYR ARMS, Inc. does not warrant or represent that this product is compatible with Steyr firearms.