10-07-2011, 02:07 AM
I've not ever heard of bolt carriers being different diameters, the "mil-spec vs commercial" diameter is normally with receiver extensions/buffer tubes.
The NM carriers are normally heavier, but for some reason I remember some were super light (faster cycle??) which you would not want for grendel.
I checked out the Young chrome NM's for a build but ultimately just elected for a good M-16 carrier. (which is also heavier)
The NM carriers are normally heavier, but for some reason I remember some were super light (faster cycle??) which you would not want for grendel.
I checked out the Young chrome NM's for a build but ultimately just elected for a good M-16 carrier. (which is also heavier)