- ARAK & XRS
- Parts & Accessories
Note- This kit is appropriate for an ARAK owner who does not have the bolt for their new caliber. Of note, 5.56 and 300 BLK are interchangeable. 7.62x39 has its own bolt. For just the BAU, see the BAU Only product listing.
ARAK-21® Barrel Assembly Unit Technical Description.
-All ARAK-21® barrels are manufactured at Faxon Machining in Cincinnati, OH.
Due the fixed gas system length of the ARAK platform and variability of 300 BLK subsonic ammunition, a suppressor is required for reliable function with the 300 BLK BAUs using subsonic ammunition and supersonic on the 12.5" barrel.