Look at Mike Bellms (internet search) for his 1x,2x pins. I ordered both so I was sure to get what I needed and it turns out the 1x was all I needed. That tightened mine up great, he also has extra heavy lug springs that ensure a good tight lockup this could be just what you need. I also purchased a 2.5-3lbs trigger kit but because I'm not a gunsmith I was a little hesitant on intalling it so I didnt at first holding on to it for over a year then last night follwing his step by step instructions that you can download for free i did mine and it is truely amazing at the difference. He sells kits that really get the trigger pull down but I went conservatively and am extremely satisfied. I also got the heavy hammer spring to ensure positive engaugement and the heavy lug spring with shipping I spent $45.00 but in accuracy I couldn't spent it any better.