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  1. Pollynator_bravo2

    No bb firing when front receiver pin is in

    Thanks for the advice
  2. Pollynator_bravo2

    No bb firing when front receiver pin is in

    Yeah I think there is some investigating to do.
  3. Pollynator_bravo2

    No bb firing when front receiver pin is in

    When I put the pin in I can’t do it without tapping it in but I can’t see why. Doesn’t make any sense
  4. Pollynator_bravo2

    No bb firing when front receiver pin is in

    I feared this might be the case tbh. When I hold it in place with no pin it fires
  5. Pollynator_bravo2

    No bb firing when front receiver pin is in

    I tried this yesterday there was two in the and one shot out the feed tube which was impressive being a maxx and they normally lock in place
  6. Pollynator_bravo2

    No bb firing when front receiver pin is in

    When I hold the upper receiver in place by hand it’s firing so is the nozzle now to long? It’s held back by a spring
  7. Pollynator_bravo2

    No bb firing when front receiver pin is in

    Geoffs ammo and I’ve tried a mid cap PTS, Krytac, G and G and even a shitty hi cap nuprol. The nozzle appears to be going back and forward and reach the lips ok that’s what stumped me as I’d suspect if it was then it would fire but the bb would come out like something on a matrix film
  8. Pollynator_bravo2

    No bb firing when front receiver pin is in

    20.5 from memory but I’m about to rip it all apart and measure literally everything lol
  9. Pollynator_bravo2

    No bb firing when front receiver pin is in

    Afternoon. I’ve been putting together a m4 from a Specna arms aly reciever (upper&lower) and a gate eon gear box. I have a maxx m4a hop unit inside. Gear box is shimmed well and cycling nice a quite. Nozzle is 20.5 mm I think. I measured it now can’t remember the figure doh 😩 Anyway. No matter...
  10. Pollynator_bravo2

    ASG HERA ARMS CQR AR-15 Milspec SSS Edition Hungry for electric

    Hey folks. This is a new one on me. I brought one of these second hand admittedly and it went out to skirmish this weekend. It seemed to fire fine but when switching back to safe it was like the bbs dropped out and the power died. It’s got EBB on it and I was using a 7.4v lipo 2500mah. The...
  11. Pollynator_bravo2

    TM MP7 poor performance

    Yes mate. I thought that was the case DEFCON don’t accept it but hey ho
  12. Pollynator_bravo2

    TM MP7 poor performance

    No I believe they are amorak 
  13. Pollynator_bravo2

    New S&T M249 SAW Sportsline low fps

    Cheers dude. I found the hop unit wasn’t engaged with the gear box correctly and that lifted it up to 260 however after this weekend the gb is coming out and I’m gonna investigate it properly 
  14. Pollynator_bravo2

    New S&T M249 SAW Sportsline low fps

    Yeah 100%. Got it off Defcon and I can see inside it’s a v2 also.  main difference to what I’ve worked with before is hop unit and nozzle length.  Since posting this I’ve looked about and it could be compression parts related namely piston and cylinder head ?‍♂️ I think I’ve got a couple spare...
  15. Pollynator_bravo2

    New S&T M249 SAW Sportsline low fps

    So I can’t find to much on this particular system other than it’s much like the A&K versions. So this one runs a V2 gearbox.    out the box on 0.28g bbs without any work being done I was getting 211 fps. I’ve just popped new bucking and a m105 spring and I’m hitting 245fps and about 0.8j...
  16. Pollynator_bravo2

    TM MP7 poor performance

    How would I check that? There is very very little play when they are in so it must be a design fault I’m guessing
  17. Pollynator_bravo2

    TM MP7 poor performance

    Afternoon, Ive been looking at my mates TM MP7 aeg. He brought a couple of new mags hi cap ones and they seem to reduce the performance of the gun to 100fps. The only modification he’s done to it is to adapt it from the odd tm battery adapter configuration which I think was a 7.2v battery over...
  18. Pollynator_bravo2

    Fps drama

    So tried changing bucking and it got worse, tried different barrel still bad. Checked compression on nozzle (should have done this before) and Maxx pro noz was leaking loads. Tried another max pro noz and same thing. Switched back to shs and hey presto it worked a treat. Now consistent fps at...
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