Restrictions
- Is a 'Call to order' product.
Top takeaways
- The Brownells BRN-PROTO A1 20" barrel is stripped, has a 1-12 twist rate, and is designed for a rifle length gas system with a .625 gas block diameter.
- It features a ½-28 thread pitch on the muzzle and is made from 4150 chrome moly steel, also undergoing magnetic particle inspection.
- A standard A1/A2 fixed front sight base is not compatible due to the shorter gas block journal, but most low profile gas blocks should fit.
Attributes
- Delivery weight: 0.794kg
Item details
US export classification: 0A501.c




