The GP11 is pretty if not impossible, sadly.

A lot of sites list it, but when you go to them, they are out or it diverts you to PPU.

Nothing against PPU, I use the brass in a Savage built on 7.5, its good stuff.

That's some really good accuracy. My K31icon likes the GP11 (a guy sent me 20 rounds to play with!) I have been able to get it good with S175M (have to load up some and shoot it, spring is here!)

My eyes don't so so good with iron sights, so the 1911 I also got (from a member here) has not been shot much but summer plans are to give it a go.

I have the scope mount on the K31. The clamp on one is dynamite solid.