Wimberley Arms WA-4 Nickel Boron (NiB) Bolt - Benelli M4 Compatable

We took our already awesome heat treated 1040 steel bolt, fluted it to lose some weight and then coated it with Nickel Boron – NiB if you’re cool. This bolt is top of the line and will function in any Benelli M2 and M4 spec shotgun. We guarantee compatibility with the Wimberley WA-2, WA-4 and authentic Benelli M2 & M4 models but cannot guarantee fitment with other clones as few are genuinely 1:1 spec.