Technical information

Practical A.E.G Upgrade 2006
Page 81 Copyright 2005,06 The AirsoftPRESS (Hong Kong). All rights reserved.
Some newer V2 mechbox implementations have wide openings near the butt of
the mechbox (such as the Cybergun M4 mechbox). These openings will NOT
bring you any performance benefit. They do make your life easier during
mechbox assembly – you may now directly press down the spring with one of
your fingers when the other fingers are working hard to close the mechbox
halves together.
Aluminum piston and mechbox shell breakage:
It is the metallic piston head, NOT the metallic piston that produces the problem.
The elastic deformation of plastic (polycarbonate) piston head helps dissipating
the impact energy generated during spring decompression. Metallic piston head
Openings on both
sides of the mechbox
shell