TM G17 not firing correctly

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Frizza

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Wondering if anyone can offer some advice. 

Was using my glock yesterday, went to chrono and it would just not fire correctly. Some would go about 5 metres and some would just roll out, it came out at about 110 on the chrono. Which is very odd and first time it’s had issues like this after owning it about a year. 

I know it’s getting colder but weather wasn’t too bad yesterday and fairly warm considering so didn’t think the green gas would really be affected. 

Any help would be great, cheers 

 
Was this on multiple mags, or did you only try one?

We're there any other issues, such as slide cycling improperly?

 
Is your hop adjusted correctly?

Mags leak free?

All mags doing the same thing?

what make & model is it?

 
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Thanks for replying

Everything seems to work normally and neither mag leaks I haven’t touched the hop since the game before last where it worked amazingly and shot at at least 300fps so I don’t know what’s happened. 

 
What make is it? And model?

Have you taken it apart to see if anything is obviously split or otherwise damaged?

 
Do you have access to a Chrono (beg or borrow) to test in the garden / shed / lounge? 

If so, refill the gas, keep mag at room temp for a few hours, then pop a few shots off. Keep an eye on the cycling, and you should know if it feels off.

If you have the ability to test either your mags in another gun, or a mate's mags in yours, you can also get a definite 'mag is ok/borked' too.

If all ok, then blame the day... If not then we'll have to see from there. It could be as simple as the hammer spring not putting enough energy into the valve.

As @rocketdogbert says eyeball the hardware, split the slide and frame and see if anything jumps out as damaged too.

 
Just had another look and the gun cycles but when the magazine the bb just falls out once it is cocked. 

Cant see any obvious damage 

 
Drop a bb down the barrel from the front

it should stop at the hop rubber

 
BB just falls out of the barrel, when you rack the slide and mag in? Sounds like the hop rubber is shot...

 
Thanks for your help guys think it is the hop up as you say gunna have to get it sorted 

cheers ?

 
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