Advanced Armament Co (AAC) AR-15 Pistol Barrel Assembly 300 AAC Blackout 1 in 7" Twist 9" Chrome Moly Matte with Low Profile Gas Block
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This 9" barrel features a 1 in 7" twist and is threaded 5/8"-24 at the muzzle for easy installation of flash hiders, muzzle brakes, and/or sound suppressors. It utilizes a pistol length gas system and is compatible with most subsonic and supersonic ammunition, with or without a silencer in place. However, some subsonic ammunition may not always cycle reliably under adverse conditions or in a severely fouled firearm without a sound suppressor attached to provide extra backpressure. Barrel assembly includes a pistol gas tube, low profile steel gas block, barrel extension and locator pin. Requires barrel nut for installation (not included).
- Length: 9"
- Material: 4150 Chrome Moly Vanadium Steel
- Contour: Medium
- Chamber: 300 AAC Blackout
- Twist Rate: 1 in 7"
- Chrome Lined: No
- Finish: Black Nitride / Melonite
- M4 Feed Ramps: Yes
- Muzzle Thread Pattern: 5/8"-24
- Gas Port Location: Pistol
- Exterior Diameter at Gas Port: 0.750"
- Extras: Low Profile Gas Block, Gas Tube
- Additional Info: Suitable for use w/Subsonic or Supersonic loads, either Suppressed or Unsuppressed
Please Note: An “AR-15 Pistol” upper assembly has a barrel less than 16” in length. Pistol uppers are only for use on AR-15 pistol lowers and legal Short-Barreled Rifles. Other configurations may violate Federal law.
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