SACair Forum

TM M9 fixed hop up

May 4, 2004 9:37pm
Anybody know what happens if you use .25's in a TM M9? The box says hop up is fixed for .2's so I am curious if it will mess up the pistol...
May 4, 2004 9:50pm
So long as you use high quality BBs, the hop bucking and the barrel will be fine...
May 4, 2004 9:54pm
mostly excel .25's
May 4, 2004 9:56pm
it'll be fine with those...