DPMS Barrel AR-15 Pistol AP4 5.56x45mm NATO M4 Contour 1 in 9" Twist 14.5" Chrome Moly Matte

Product #: 981841 DPMS #: BL-50-AP4
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  • Information
This DPMS AP4 (NATO M4) contour AR-15 pistol barrel is fully chambered and ready for installation onto a host upper receiver. The 16 inch barrel features a 5.56 x 45 mm chamber, and the 1 in 9" twist rifling is capable of stabilizing light to medium weight projectiles of up to 69 grains. Barrel extension and locator pin are included and factory installed.

Barrel Specifications:
  • Length: 14 1/2 inches
  • Material: Chrome Moly Steel
  • Contour: AP4 (NATO M4)
  • Chamber: 5.56 x 45 mm
  • Twist Rate: 1 in 9 inches
  • Chrome Lined: Yes
  • Finish: Matte Black
  • M4 Feed Ramps: Yes
  • Muzzle Thread Pattern: 1/2 x 28 TPI
  • Gas Port Location: Carbine
  • Exterior Diameter at Gas Port: .750 inches

Please Note: An “AR-15 Pistol” barrel is less than 16” in length. Pistol barrels are only for use on AR-15 pistol lowers and legal Short-Barreled Rifles. Other configurations may violate Federal law.

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