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For: JBU M120 Upgrade Kit for M16 AEGProduct Information:
i bought this to overhaul my jg m16 a4, and increase the air seal. for these purposes it worked, but created additional problems in my gun. every once in a while, my piston will get jammed in the rear position, blowing my fuse. not only is this annoying, having to open up the gb, reset the piston, and replace the fuse, but it made a stripping noise, even though nothing was stripped when i bypassed the fuse, and i now have two aegs in need of fuses (i blew both of them with this ftk) i am currently trying to find out what causes this problem, but i know a the ins and outs of the v2 gb, and i am sure its not an installation error.
amazing air seal
gets the job done
full metal everything, great value, great quality.
even though the parts are heavy, the rof doesnt decrease nearly as much as i expected.
comes pre aoe fixed
parts dont seem to be compatible with my gb
tolerances may be off
does not work well in my application (piston issues)
need to further investigate what went wrong