AR-380 8.5" Barrel 1:16 Twist, 4150V, Black Nitride, Blowback | Moriarti Arms

$109.95
27% OFF
Moriarti Armaments
Build your AR-380 pistol right with the Moriarti Arms 8.5" AR-380 Auto Barrel, engineered for reliable blowback performance and precision shooting.

This barrel is made from 4150V gun-quality steel, stress-relieved and finished in black nitride for excellent corrosion resistance and longevity. A 1:16 twist rate ensures stability for .380 Auto rounds, while the medium profile balances rigidity and weight.

Featuring 5/8x24 muzzle threads, it''s suppressor- and muzzle device-ready, perfect for custom builds. Compatible with standard blowback AR-15 pistol caliber platforms.

Barrel Specifications:
Caliber: .380 Auto

Length: 8.5"

Twist Rate: 1:16

Profile: Medium

Gas System: Blowback (no gas block required)

Material: 4150V Gun-Quality Steel

Muzzle Threads: 5/8x24 TPI

Finish: Black Nitride

Compatibility: AR-15 Pistol Caliber Carbine Platforms (PCC)

Made in the USA

  • Posted By moriartiarms
  • Posted 1/23/2026 12:25:00 PM EDT
  • Brand Moriarti Armaments
  • Category Parts
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