A skeleton type aluminum butt, profiled for airsoft masks and full helmets of the 5KU brand in particular. Allows positioning, and aiming with sights and optical sight with low mounting. A simple and effective assembly on the rail assemblies available. CNC manufactured with a matte black finish, which protects it from corrosion.
Suitable for GHK, LCT, DBoys and CYMA AK with folding stock.

