Problem with a couple of my GBB's

Rock 'N' Roll Outlaw · December 27th, 2008, 18:44

For a while my KJW M9 has had this problem, and now my TM Desert Eagle has started doing the same thing.

When firing, the bb does not get shot out the barrel, instead it only rolls out of the front end. I tried looking around, for similar issues but I was unable to do so.

Has anyone here had this problem before, and if so, did ya fix it?

Any and all help is appreciated.

White_knight · December 27th, 2008, 18:52

tried turning up the hop up?

Rock 'N' Roll Outlaw · December 27th, 2008, 18:59

Tried that already. It worked at first, but it went right back to being a bastard.

Endymion · December 27th, 2008, 21:43

On the TM DE, you really need to crank the hop up all the way. It's a modified TM G36C style hop up, but unfortunately it doesn't stay in place. If you crank it to the max, the passage of the BB will shift it down to where it needs to sit. From there you shouldn't have any roll out issues.

Dao · December 27th, 2008, 22:43

It seems trivial, but your propane tank may be almost empty, so it doesn't have enough gas pressure to fill the whole mag.
I've had the same "bb rolling out of the barrel" issue with my TM hi-capa, and the problem was my almost empty propane tank. So just get a new propane tank and give it a try.

Azuki · December 28th, 2008, 01:05

Also make sure your floating valve is unobstructed. If it isn't opening all the way, the gun will still cycle but BBs will not be shot out fully.

rjorven · January 4th, 2009, 18:43

if you installed the 170 recoil springs it will push the bbs right out the end youll need a metal slide to use the 170 springs,

if you didnt install them i have no clue, it didnt do that for me

KEVORKIAN · January 4th, 2009, 19:37

Cracked/broken loading nozzle ?
Piston head/o-ring ?

six4 · January 11th, 2009, 07:33

i had a similiar problem on my kjw p-14/15 para-ord. Turned out to be broken hammer spring,,,maybe thats your problem.

Fuzy · January 12th, 2009, 15:29

If the slide blows back like normal and you can tell there is normal gas pressure when you fire your gun, its either a matter of the BB is not being held by the hop up propperly and is just sitting on it allowing gas to escape around it or there may be an obstruction in the area of the feed position. If iregular gas pressure (too little or too much) first check where most of the excess gas escapes at it may be a bent or obstructed nozzle causing the gas to shoot for example up into the slide rather than into the barrel. Most likely not it but check the the slide is all the way forward, if its not see what is causing it as the gap is allowing gas to escape.

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December 27th, 2008, 18:52	#2
White_knight Trader rating Join Date: Jul 2006	tried turning up the hop up? __________________ Burnaby / Vancouver area Age verifier

December 27th, 2008, 22:43	#5
Dao Trader rating Join Date: Feb 2007 Location: Edmonton, AB	It seems trivial, but your propane tank may be almost empty, so it doesn't have enough gas pressure to fill the whole mag. I've had the same "bb rolling out of the barrel" issue with my TM hi-capa, and the problem was my almost empty propane tank. So just get a new propane tank and give it a try. __________________ "Certainly there is no hunting like the hunting of man, and those who have hunted armed men long enough and like it, never really care for anything else thereafter." - Ernest Hemingway Last edited by Dao; December 27th, 2008 at 22:47..

December 28th, 2008, 01:05	#6
Azuki Trader rating Join Date: Sep 2008 Location: Toronto	Also make sure your floating valve is unobstructed. If it isn't opening all the way, the gun will still cycle but BBs will not be shot out fully. __________________ CAPS Shooter WA SV Infinity 5" Classic

December 27th, 2008, 21:43	#4
Endymion Trader rating Join Date: Jun 2006 Location: Markham, ON	On the TM DE, you really need to crank the hop up all the way. It's a modified TM G36C style hop up, but unfortunately it doesn't stay in place. If you crank it to the max, the passage of the BB will shift it down to where it needs to sit. From there you shouldn't have any roll out issues.

January 4th, 2009, 18:43	#7
rjorven Banned From The Classifieds Trader rating Join Date: Aug 2007 Location: northern BC	Deagle problems if you installed the 170 recoil springs it will push the bbs right out the end youll need a metal slide to use the 170 springs, if you didnt install them i have no clue, it didnt do that for me

January 4th, 2009, 19:37	#8
KEVORKIAN Trader rating Join Date: Nov 2006 Location: Manitoba	Cracked/broken loading nozzle ? Piston head/o-ring ? __________________ Kevorkian I SUPPORT THE USE OF SILICA BB BASTARDS!

January 11th, 2009, 07:33	#9
six4 Trader rating Join Date: Jan 2006 Location: mission b.c.	i had a similiar problem on my kjw p-14/15 para-ord. Turned out to be broken hammer spring,,,maybe thats your problem.

January 12th, 2009, 15:29	#10
Fuzy Trader rating Join Date: Dec 2008 Location: Oshawa, Ontario	If the slide blows back like normal and you can tell there is normal gas pressure when you fire your gun, its either a matter of the BB is not being held by the hop up propperly and is just sitting on it allowing gas to escape around it or there may be an obstruction in the area of the feed position. If iregular gas pressure (too little or too much) first check where most of the excess gas escapes at it may be a bent or obstructed nozzle causing the gas to shoot for example up into the slide rather than into the barrel. Most likely not it but check the the slide is all the way forward, if its not see what is causing it as the gap is allowing gas to escape.

Problem with a couple of my GBB's

Doctor's Corner