RAM Engineer
08-01-09, 10:30
I know they just advertise the N4 barrels as being "Mil Spec M249 Machine Gun barrel steel." This leads me to ASSume that it is some manner of MIL-B-11595E steel. I was wondering if anyone knew which of the following it was:
1. ORD 4150
2. ORD 4150 Resulphurized
3. CMV
Anyone know? I noticed that the BCM current standard and future BFH uppers CMV.
1. ORD 4150
2. ORD 4150 Resulphurized
3. CMV
Anyone know? I noticed that the BCM current standard and future BFH uppers CMV.