Mp7 wont feed???

heavyzero · April 15th, 2009, 18:27

i have a umarex liscenced hk mp7. the new tm clone. i got it off of velocity arms and its been nothing but hassle. the gun just wont fire bb's i took out the mechbox, barrel, hopup, and nothing seems to to be broken. i tested the motor out of the gun and it sounds fine. the motor sounds fin in the gunbut bb's wont feed into the chamber. i have a hi cap mag that came with it but that doesnt seem to be broken. i thing it could be the mag but im just not sure. sucks too becuase i dont even have a spare low cap or high-cap to test if its just the mag. at first it would fire 10 to 20 % of the time now just nothing. it also doulbe and even triple fed to the point where you would hear it clog and a bb would roll out of the barrel. some help and or advice would be greatky appreciated.

Thenooblord · April 15th, 2009, 18:29

i would guess that your tappet plate is stripped or broken in some way, happened to my TF7 too

heavyzero · April 15th, 2009, 18:44

where is the tapppet plat located in the gun. is it inside the gearbox. because if it is i looked in the the feeding tube and i saw the nozzle moving that pushes them into the barrel. would it be the tappet plate then?

Quote:

Originally Posted by Thenooblord

i would guess that your tappet plate is stripped or broken in some way, happened to my TF7 too

kalnaren · April 15th, 2009, 18:44

The TF7 is a known piece of crap that breaks tappet plates like it was made for it. Not sure if you can get replacement parts for it or not.

EDIT:

If the nozzel is moving then it isn't the tappet plate. Is your hop-up impeeding the BB flow? Is there air coming out of the gun (could be a piston problem)?

You can test the mag by winding it and moving the little spring-loaded lever on the top aside (the one that stops the BB's from coming out). BB's should zoom out.

heavyzero · April 15th, 2009, 19:14

Ive heard so many good things about it. i made just that the bbs could get through the hop up chamber when i put the rubber back on. also realized how it works anf put it on properly alligned. there is air coming out. its just plain misfeeding double feeding. triple feeding. extremely random
i can sometime fire it off 60 times without a shot
then it starts misfiring every 2 3 4 mybe 5 6 shots. that includes doulbe feeding. its very frustrating. i just had "harbringer of darkness" put new bushings in the gb. you can just hear is clogging. i dont know its a factory defaut of a slight misalignment of the feeding nozzle ore the mag.

six4 · April 17th, 2009, 03:00

I have seen that same problem with mp7's ( tm ) in my area. One solution that worked out quite well was to silicone spray the mag's spring then with some bb's in the mag,,wind it up,release it,( by hand )reload the mag and repeat. do this a few times then see if it works ( ** bb's used for this will now be junk since they will be lubed up ** ). Also try a couple drops on the feed catch spring on the top of the mag. I know it sounds dumb to lube the inside of the mag but try it to see if it works out,just dont soak the interior of the mag.

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April 15th, 2009, 18:27	#1
heavyzero Trader rating Join Date: Feb 2009 Location: burlington	Mp7 wont feed??? i have a umarex liscenced hk mp7. the new tm clone. i got it off of velocity arms and its been nothing but hassle. the gun just wont fire bb's i took out the mechbox, barrel, hopup, and nothing seems to to be broken. i tested the motor out of the gun and it sounds fine. the motor sounds fin in the gunbut bb's wont feed into the chamber. i have a hi cap mag that came with it but that doesnt seem to be broken. i thing it could be the mag but im just not sure. sucks too becuase i dont even have a spare low cap or high-cap to test if its just the mag. at first it would fire 10 to 20 % of the time now just nothing. it also doulbe and even triple fed to the point where you would hear it clog and a bb would roll out of the barrel. some help and or advice would be greatky appreciated.

April 15th, 2009, 19:14	#5
heavyzero Trader rating Join Date: Feb 2009 Location: burlington	Mp7 Ive heard so many good things about it. i made just that the bbs could get through the hop up chamber when i put the rubber back on. also realized how it works anf put it on properly alligned. there is air coming out. its just plain misfeeding double feeding. triple feeding. extremely random i can sometime fire it off 60 times without a shot then it starts misfiring every 2 3 4 mybe 5 6 shots. that includes doulbe feeding. its very frustrating. i just had "harbringer of darkness" put new bushings in the gb. you can just hear is clogging. i dont know its a factory defaut of a slight misalignment of the feeding nozzle ore the mag.

April 17th, 2009, 03:00	#6
six4 Trader rating Join Date: Jan 2006 Location: mission b.c.	I have seen that same problem with mp7's ( tm ) in my area. One solution that worked out quite well was to silicone spray the mag's spring then with some bb's in the mag,,wind it up,release it,( by hand )reload the mag and repeat. do this a few times then see if it works ( bb's used for this will now be junk since they will be lubed up ). Also try a couple drops on the feed catch spring on the top of the mag. I know it sounds dumb to lube the inside of the mag but try it to see if it works out,just dont soak the interior of the mag.

Mp7 wont feed???

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