100% the scopes I recommendedSydneyH said:Mine has a tri-rail.
Pate said:You are going need a rail of so sort to mount another optic on the standard or USG model.
The problem is most mounts will not allow you to get a decent cheek weld. These guys offer a solution.
You could use the EOtech magnifier like the EOtech G23 FTS and then use any EOtech, but you're gonna spend $1000+ on the setup. The gun was designed to be used for close quarter shooting.
I have the factory white and black SS site and am happy with it, but do agree a little magnification would be great.
Sydney,SydneyH said:I don't care about the cheek weld, since the recoil is minimal as it is.
All I need is a decent mag scope to mount on top.
My P-90 is already mounted with an Aimpoint Micro H-1 red dot scope, but I need something more suitable for long distance (100 yds) shooting.