SI Defense Barrel AR-15 300 Fireball (7.62x35mm) 16" M4 Contour 1 in 8" Twist Matte
- AR-Stoner Barrel AR-15 300 AAC Blackout Medium Contour 1 in 8"... $219.99 Available
- AR-Stoner Barrel AR-15 300 AAC Blackout Lightweight Contour 1... $219.99 Available
- CMMG Barrel AR-15 300 AAC Blackout (7.62x35mm) Multi-Role... $207.99 Available
- Advanced Armament Co (AAC) AR-15 Barrel Assembly 300 AAC... $424.99 Out of Stock, Backorder OK
- Length: 16"
- Material: 4140 Chrome Moly Steel
- Contour: M4
- Chamber: 300 AAC Blackout (7.62x35mm)
- Twist Rate: 1 in 8"
- Chrome Lined: No
- Finish: Mil-Spec Heavy Phosphate
- M4 Feed Ramps: Yes
- Muzzle Thread Pattern: 5/8"-24
- Gas Port Location: Carbine
- Exterior Diameter at Gas Port: 0.750"
- Gas port comes set for supersonic ammunition. It may need to be enlarged to fire subsonic ammunition.
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