Description
Barrel steel is certified MIL-B-11595E Chromoly Vanadium Alloy and Magnetic Particle Inspected, they are also stress relieved.
FEATURES
•Carbine Gas System
•Mil-Spec M4 Barrel extension with 5.3.1.2 MIL-STD-171 Phosphate Finish
•1.2.2.2 MIL-STD-171 Hard Chrome Chamber
•1.2.2.2 MIL-STD-171 Hard Chrome Bore
•5.56 NATO Chamber
•1 in 7 Twist rate
•All chambers are individually checked for head spacing before and after plating
•All chambers are individually high pressure tested (HPT) and then individually magnetic particle inspected (MPI)
•5.3.1.2 MIL-STD-171 Phosphate finish on the barrel exterior
•1/2x28 Thread pitch
•Threads are cut concentric to the bore
•Weighs 28.0oz
Is there a coupon? I am seeing $229.