Model 1 Barrel AR-15 223 Remington Heavy Contour 1 in 9" Twist 16" Chrome Moly Matte with Front Sight Base

Product #: 962894 Model 1 #: Barrel16"HeavyCM 223 1-9PreBan
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Product Information

This Model 1 CAR Heavy AR-15 Barrel is fully chambered and ready for installation onto a host upper receiver. The barrel's heavier contour makes it less susceptible to heat-induced accuracy degradation (or vertical "stringing") during prolonged strings of fire, while also remaining light enough to avoid being a burden to carry in the field. Manufactured by E.R. Shaw, the barrel features a 223 Remington Chamber and a 1 in 9" Rifling Twist that is capable of stabilizing light- to medium-weight projectiles of up to about 69 grains. Includes a factory-installed barrel nut, handguard cap, barrel extension, locator pin and forged A2 front sight base with bayonet lug. Front sight post, spring and detent are sold separately.

Technical Information:
  • Length: 16"
  • Material: 4140 Chrome Moly Steel
  • Contour: Heavy
  • Chamber: 223 Remington
  • Twist Rate: 1 in 9"
  • Chrome Lined: No
  • Finish: Manganese Phosphate (Parkerized)
  • M4 Feed Ramps: Yes
  • Muzzle Thread Pattern: 1/2"-28
  • Gas Port Location: Carbine
  • Exterior Diameter at Gas Port: 0.750"
  • Extras: Forged A2 Front Sight Base, Handguard End Cap, Barrel Nut
  • Front sight post, spring and detent NOT included

Barrel Gunsmithing Notes:
  • Recommended barrel nut torque value: 30 ft-lbs minimum, then continue to torque in order to align the next available gas tube notch in barrel nut, but not to exceed 80 ft-lbs
  • The use of an AR action block, receiver block insert, gas tube alignment tool and quality armorer's wrench is recommended for barrel installation.
  • Due to the manufacturing process, small burrs may occur inside the bore near the gas port. It may be necessary to run a cleaning patch through the bore to clear any burrs before use.
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