Got my Echo 1 to hit a Man size target at a 180 feet after upgrades using .25g bb's.
CA hop up unit with guarder hopup rubber but used the CA plastic nub.
original barrel but cut shorter
Modify M4 gearbox internals
Shoot at 350fps(.2's)
Only problem of the built was that i had to file a couple of thousand of an inch off the nozzle to make it feed.
okey dokey lokey
Last edited by spaceman13; May 7th, 2012 at 20:14..