TM M14 Mag feeding problems

[hoggy21]

Right, heres the problem.
I own a TM M14, which has been upgraded for 405 fps. Im using the 3 mags i got with it. Every mag seems to put a BB in the chamber, then not fire it. Upon pulling the trigger again, it fires two bb's. This only happens for the first 15-20 bb's, after which it feeds fine and can be used perfectly. I dont think its double feeding, just not firing the first bb on the first trigger pull, then two on the second pull.
Any thoughts?

[Barny Hamon]

Re: TM M14 Mag feeding problems

Try different Mags, if its not that then its likely a tappet plate/nozzle problem

[The Keeper of Secrets]

Re: TM M14 Mag feeding problems

Yeah, try new mags, also check your hopup to see if it's badly assembled/come loose/broken.

[hoggy21]

Re: TM M14 Mag feeding problems

Rgr, thanks all, will try those!