DPMS AP4 Barrel AR-15 5.56x45mm NATO M4 Contour 1 in 9" Twist 16" Chrome Moly Matte with Front Sight Base

Product #: 559023 DPMS #: BL-11-AP4
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  • Information
This DPMS AP4 AR-15 Barrel is fully chambered and ready to install on an upper receiver. The 16" M4 Contour Barrel is machined from 4140 Chrome Moly Steel and features versatile 1 in 9" Twist Rifling that is ideal for use with light- to medium-weight projectiles up to about 69 grains. The barrel's true 5.56x45mm NATO chamber and M4 feed ramps ensure reliable feeding and safe functioning with either commercial or higher pressure military surplus ammunition. The barrel is threaded 1/2"-28 for adding any compatible muzzle device and includes a factory-installed forged front sight base with bayonet lug, barrel nut, handguard cap, barrel extension and locator pin. Front sight post, detent and spring are NOT included.

Technical Information:
  • Length: 16"
  • Material: 4140 Chrome Moly Steel
  • Contour: M4
  • Chamber: 5.56x45mm NATO
  • Twist Rate: 1 in 9"
  • Chrome Lined: No
  • Finish: Parkerized
  • M4 Feed Ramps: Yes
  • Muzzle Thread Pattern: 1/2"-28
  • Gas Port Location: Carbine
  • Exterior Diameter at Gas Port: 0.750"
  • Extras: Forged Front Sight Base, Handguard Cap, Barrel Nut
  • Front Sight Post, Detent and Spring sold separately

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