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Stealth · July 9th, 2012, 13:12

Make sure your hop-up unit is pushed right up against the mechbox. Do this by using shims and/or O-rings. The little tiny spring that most guns come with sucks.

Also, check the seal between your hop-up rubber and the nozzle. Do this by re-setting the gearbox so that the nozzle is in its most forward position. Re-assemble the gun, then shine a light down the BB feed tube. Look through the barrel on the muzzle side (make sure there's no battery plugged in and no BB in the chamber), if you can see any sort of light, your seal is not ideal and you should change either your hop-up rubber/unit and/or nozzle.

Unbeknownst to most, there are some "magical pairings" of nozzles and hop-up rubbers and some hop-up rubbers only work with certain nozzles.

Actually it can be any number of things. Check your compression.

July 9th, 2012, 13:12	#3
Stealth Mr. Silencer Trader rating Join Date: Dec 2001 Location: Toronto	Make sure your hop-up unit is pushed right up against the mechbox. Do this by using shims and/or O-rings. The little tiny spring that most guns come with sucks. Also, check the seal between your hop-up rubber and the nozzle. Do this by re-setting the gearbox so that the nozzle is in its most forward position. Re-assemble the gun, then shine a light down the BB feed tube. Look through the barrel on the muzzle side (make sure there's no battery plugged in and no BB in the chamber), if you can see any sort of light, your seal is not ideal and you should change either your hop-up rubber/unit and/or nozzle. Unbeknownst to most, there are some "magical pairings" of nozzles and hop-up rubbers and some hop-up rubbers only work with certain nozzles. Actually it can be any number of things. Check your compression. Last edited by Stealth; July 9th, 2012 at 14:03..