Through time, your piston head, inner cylinder, and cylinder head will become fouled with tiny bits of metal from your piston and your trigger sear, and oil or silicone residue. As well as a loss of velocity through time, as your spring comtinues to compress. I took the liberty to work on my rifle after a downpour we had on Sunday, May 02, 2010. An UPDATE to my new rifle velocity will be made on Sunday, May 16, 2010. It was time for my maintenance overhaul, and this is how I do it…..

When I try to screw the Cylinder head into the Teflon Cylinder it just released without any problems.

UTG L96 cylinder upgrades – spring, piston, piston cup, spring guide

An Instructional video on how to disassemble and reassemble a stock cylinder set from a UTG L96