Our .300 BLK barrels are designed to perform with both subsonic (220 and 208 gr) and supersonic loads. The gas port has been tuned to lock the bolt open on the last round when using subsonic ammunition with a sound suppressor or supersonic ammo without a suppressor. The bolt may not lock back when using subsonic ammunition WITHOUT a sound suppressor installed. Please note that subsonic ammunition can be more prone to malfunction than supersonic ammunition.
This barrel is an excellent choice for a general purpose AR rifle build. It is perfectly suited for use at the range, in a 3-Gun match, or in the field pursuing game.
- Surface: Diamond Fluted
- Length: 16"
- Weight: 1.71 lbs.
- Material: 4140 Chrome Moly Steel
- Chamber: 300 AAC Blackout
- Twist Rate: 1 in 8"
- Chrome Lined: No
- Finish: Melonite QPQ
- M4 Feed Ramps: Yes
- Muzzle Thread Pattern: 5/8"-24
- Gas Port Location: Carbine
- Exterior Diameter at Gas Port: 0.750"
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Great barrel. Shoots great, looks great. Don't hesitate to buy this barrel