That's a modified barrel from a USP Match pistol, 6 inch barrel.Holy Christmas Batman! That Expert looks BADASS! Are you running an Elite barrel out of that? What kind of extended base plates are those?
The Reflex sight never did help me shot better. It works great on an MP5 or an M4 but not a pistol. I actually modified the stock sight on the Expert and shot much better with iron sights.that is a pretty sweet expery you have there, how do you like the trijicon?
Yes and I found the Optima had a fuzzy dot. It wasn't as defined as other reddot sights. The biggest problem with reddots on a pistol is learning to aim them. You have to be almost spot on when you bring up the gun other wise even being a few degrees of will result in not seeing the dot. I found the iron sights to be far more forgiving and easier to shoot.nice collection , have you tried an Optima 2000 on that beast??