View Single Post
Old 01-04-2011, 02:00 PM
vietec's Avatar
vietec vietec is offline
Registered User
Join Date: Dec 2006
Location: Dayton, OH
Posts: 252
Blog Entries: 7
vietec is a Private
Send a message via AIM to vietec Send a message via Yahoo to vietec
iTrader: (13)
Originally Posted by Behindyou View Post
EDIT* I'm stupid, really. I felt the rails, and they were metal, but the upper receiver is plastic. I am RETARDED. Also, were you the person that modified the piston head? If so, what makes it "Modified"?
When someone modifies a TM piston head, they usually drill holes into the top half of the piston head where the mold breaks are. This is said to help air expand the O ring and create a better seal.
Reply With Quote