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507 Posts
I've noticed that USP Tactical 9mm barrels do not have the cut-out on the barrel to utilize Hk's barrel O-ring like the .45 Auto USP's, Hk 45's, and Mark 23's do.
Anyone know the reason for this?
I'd like to have a P30 and get an L barrel threaded for it...but don't know if it would cause any issues by not having the o-ring. Didn't know if there was a reason why the 9mm's didn't need the O-ring...but the .45's do.
Anyone know the reason for this?
I'd like to have a P30 and get an L barrel threaded for it...but don't know if it would cause any issues by not having the o-ring. Didn't know if there was a reason why the 9mm's didn't need the O-ring...but the .45's do.