Spike's Tactical 5.56 Cold Hammer Forged Carbine Barrel - Lightweight Profile - 11.5" - SPKSB51106-LW

These amazing cold hammer forged barrels are extremely durable with a 20,000+ round service life. It features a lightweight profile at 11.5″ long and only weighs 1 lb. 2 oz. oz with M4 barrel extension and no front sight base. The gas block seat is .625″ with a properly sized gas port and the muzzle is threaded perfectly concentric to the bore with 1/2×28 threads. This AR-15 barrel is made to military specifications for the M249 SAW and the cold hammer forging process work-hardens the steel around a rifled mandrel, which creates the lands and grooves. Chambered in 5.56 NATO, with a 1:7 twist rate and the barrel blanks are the correct certified CMV material and they are also hard chrome lined to the M249 SAW MIL-SPEC, which is almost twice as thick as the hard chrome on a MIL-SPEC M4. The result is a rifle that can be run hard day after day! Each barrel is high pressure tested and magnetic particle inspected. They have M4 barrel extensions, and are phosphate finished on the outside and under the front sight base as well. If you are looking for a long lasting 5.56 barrel, you can’t go wrong with Spikes Tactical.

Features:

• 11.5″ with a carbine gas system
• 4150 Chrome Moly Vanadium steel
• Cold hammer forged
• M249 SAW Chrome lined spec
• Manganese Phosphate finish
• .625″ gas seat diameter
• 1/7 Twist rate
• Lightweight profile