1 Customer Review
by James M. on 02/01/2016
"Got this for my we g17. I was planning on modifying my magazine with a high flow valve and a guarder rubber gasket so replacing the stock rocket valve with a metal one would be a good idea. This valve is really well made and has wide ports to minimize turbulence. It didn't really do anything to the fps but with the magazine upgrades, the g17 is shooting 340fps as appose to 320fps. Durability upgrade I guess.