This is my Bushmaster M4 1/9 barrel.
Inscription is --
B MP 5.56 NATO 1/9What are inscribed on your barrels?
- 20", 11.5 SBR, Ultralight, etc.
Please Post.
I've also seen a BM 11.5, but inscription was on the permanently pinned 5.5" muzzle device. I forgot what the inscription was.