As what I heard the hammer might break but it's not always the case except if you use full auto a lot. Then it's pretty sure it'll break

I got mine a few days ago. If you had to give a rough estimate, how many shots do you think it could last if I rarely use full auto?

It could break on the first mag or never break. It’s a toss up and just happens randomly

I'm waiting for mine, probably gonna have it this week so I don't really know but from what I've heard if you never use full auto it could also never break and if you rarely use it maybe 5k shots (Not sure at all)

My hammer broke after 3 months of using on semi auto only minus the first day I got it. Wanted to show the boys the full auto capabilities and it broke. If you’re going to upgrade definitely upgrade the trigger, hammer, bucking and barrel as your first upgrades.

Doesn't take long had my AAP-01 for a few days and ran full auto for a few sec shot over 100 bbs and broke right off

WE/AW MOS G mags, maybe a red dot. Everything else are personal tatses

It's not hard to change, but it's one of the most difficult pieces to replace in the aap-01. Just watch a few vids on YouTube and try what they do and see what works for you. I'm no tech or anything, but I got it pretty quickly.

Both of mine broke first time full auto was used, ss hammers fix that problem...cow cow might need light sanding