M-16(or Ar-15) kit with the above mentioned mags 300 rounds fired bought last year. near new condition Bounce wieght has been altered[filed to fit] to allow the unit to function (it didn't function reliably new). will function 100% in semi and 100% in auto with aguila SSS (which by the way is really the only round for a 1/9in or faster twist Ar-15or M-16 as others are innaccurate.) otherwise auto is scetchy and depends on ammo. It seems like the more powerful it gets the more reliable the kit gets. (I would reccommend trying that .223 rimfire aguila also it would probably run 100%.
The 30rd mags are no-longer availible through ceiner.
email@example.com -Austin Green