Material : 7075 aluminum
Weight : 39.4 g
Package Contents :
7075 Advanced Bolt V2 *1
6061 Piston Mount *1
6061 Selector Plate (Red) *1
7075 Selector switch (Red) *1
160% Non-linear performance spring *1
· There are M5 screw holes for other handles to be installed.
· Can be used with AP7.
I bought this bbu and within the first 100 round it wasn’t cycling properly I have the pistol at the Airsoft shop for weeks trying to make it work and in the end I swapped back to the original blow back unit and it now works perfect