I bought a kit for my down powered LGU (9ft pounds) Varmint in .177, bought the kit opened the port to 3.1 and the thing is a monster 5 11.4 again and smoother than a babies bum!!! Great kits indeed and knowledgable to say the least! I’ll never put another kit in a gun again!
Ps do you doa Kit for my bsa 240 magnum in .22��