Slong Airsoft 9mm Hammer Bearing Set for ISSC M22, SAI BLU, Lonewolf, & Compatible Airsoft Gas Blowback Pistols

"Tested on an AAP-01

I couldn't find any reviews to discribe what size bearing to get for the AAP-01 so I decided to try this one. It installed fine. However, my pistol would shoot in full auto even though it was set on semi. Even when I press the hammer down manually, the auto sear would not engage half of the time. I did use the original hammer after modding it. Not sure if it would have made any difference if it was on a Cow Cow hammer. The bearing itself rolled smoothly and had no issues retracting into the frame while on the hammer. I hope this helps other AAP01 users.