[Texy_Boo]

I have been working on a barrett m82a1 and making it into a dmr. i recently came across the issue of no bbs being fed after installing a new compression set and a m150 spring. the compression set is the zci kit from ak2m4. the mosfet i installed has pre-cocking and i have been using the pre-cocking with the old original compression set and have had no issues the spring was a m130. there are no feeding issues when no pre-cocking is applied. i have tried multiple different mags and mag types. i have checked the gearbox and it seems fine i dont have a delayer chip but if the gun was feeding before with a m130 that should be cycling faster then i shouldn't need one now. im at a loss of what to do.
Parts list:
g&g v2 box
zci compression set
zci prowin style hop chamber
maple leaf mr bucking
m150 spring
perun v2 hybrid mosfet
zci 6.02 barrel

 

[Plazmaburn]

Did your compression set come with a new nozzle? If so measure it with a pair of calipers to see if its longer then your original one. Or put in the old nozzle and see if that clears it up.

 

[Texy_Boo]

the new nozzle is 21.39 and the old is 21.33 would that make a difference

 

[Texy_Boo]

Ive put the old nozzle in and still feeds every other shot

 

[RonSwanson]

How the mag feeding spring tension? Small chance but every other shot could mean mag spring isn't able to keep up with nozzle movement speed, hence every other shit being fired?

Have a feel by pressing the follower.