Purchased bearings for Benjamin's Titan .22 airgun trigger modification. I installed a 5x8x2.5mm bearing on the trigger but still found the pull to be a bit long. The 5 x 9 x 3mm bearing made the trigger very light, but not so light that it would not discharge on impact testing. Now everything is in order. The safety on the rifle works perfectly. But if you're buying Crossman/Benjamin trigger mod bearings, I suggest buying both sizes to see which one suits you best. My groups got much tighter after changing bearing less than 1 inch at 50 yards.