.12g bb's in ksc mac11?
 

today my buddy was running .12g bb's(suprisingly good quality) through his mac11. besides the lower preformance would this be bad or do damage to the gun?
thanx

You're going to get extremely high FPS out of those.

Also, .12s have a bad tendency to shatter or fragment inside the gun, which can cause damage. They can also jam frequently since they're rarely made with decent quality control.

well first off do a simple search this has been discussed to death around here. with .12 g bbs its user beware, hes taking his chances as all it takes is one shitty bb to fuck his gun.

really. cuz these are pretty good bb's with no seams and he put about four mags through it with no problems

So why are you asking?

just wondering if long term it would effect the gun

well if the are "good bbs" they will not cause any damage normal bbs wont. however i seriouly doubt they are good bbs.

TM made some 0.12s but I don't think they're worth getting for a gas/AEG...

Because of the way GBBs work, you won't get much higher FPS than with 0.2s.