On an unrelated bitch & gripe; I just got a Form 1 back in 23 days for an SBR and these @$$holes at ATF refuse to use the same background check for a piece of muffler pipe as the one I got for a real weapon! Only the .gov could operate in such a bassackwards way, but after 20 years in Uncle Sam’s Canoe Club, I oughtta know that. But, it’s good for my blood pressure to vent it off. Thanks for the therapy session, I’ll get your bill any day!
So, back on topic, when I get the Omega, I’ll take the UMP out and shoot with & without the can and see if it shifts. Right now, without the can and my Z-point sight it’s good and tight for a .45 subgun with a 8” barrel. This was on a day when I couldn’t feel my fingers @ 25 yards and shot without the can: