SSPKali

Had a couple of odd failures recently - broke a nozzle guide (think it was AG) snapped off the front part that sits in the BCG and guides the nozzle. Not surprised AG item broke so popped a spare GM one on. That failed tonight when I was checking the FPS. Again snapped in the same place! Fitted my last spare, a G&P one, but took a small round file and added a radius to the inside corner where the others had failed. Now have a couple of Unicorn ones on order from JKArmy but will probably never need them 😂 Anyone else had this? Nozzle springs, nozzle feed pokey bit, hell even the tiny screw through the nozzle holding the internals in….just never seen one of these fail before! UPDATED: The Guns Modify failed at the sharp corner and cracked there (circled red areas) then slowly got worse and worse over next X shots as shown by the rough, almost tree ring lines, area across the middle 80% The Angry Gun one (grey) broke rapidly (as evidenced by lack to brassing / tide marks as on the GM one) and appears to have failed at the inclusion / void highlighted. AG had radiused the corners…but then used shitty plastic

Think I have the MWS just so now. MWS Hao 10.5 UGRI rail Ambi charging handle Magpul stock Hogue grip 60deg fire selector (low profile on left, higher profile on right for manipulation shooting left handed) Magpul Mlok sling mount BCM rail covers Magpul foregrip and hand stop Olight Odin mini no name mini suppressor inside hand guard Vortex red dot and clone Unity riser Ferro Slingster

I think the issue here is the bolt is obviously out of spec (or not designed to work with the regular TM receiver…which sounds like a get-out clause!) I would look where the bolt is catching and file off the bolt part, no point trying to alter the receiver or spend ££££ on an aftermarket one only to find out the same thing happens! Worth cleaning out all the chips and dust, won’t do any favours if that gets in the workings

MWS mags without the “mod” will fire 120 rounds easy. That is normally a 12-14g fill of gas, easy to work out vs the weight of gas in the can. One can will be plenty for a days play, maybe take two if you are worried. Cutting the silver tube down to cram more liquid propane in is a DUMB idea. Pushing o-rings into the fill valve to prevent the “gas leaking out when filling” is a DUMB idea. The Marui engineers are not dumb.

I tend to wear my usual every day watch, not had it shot out yet but figure I would have to be really unlucky to have it damaged by a bit of plastic. Elliot Brown Holton or Steinhart Vintage MilSub depending what I fancy on that day.

Thanks for the extensive advice! pre-cocking and AB are off and it rarely does it, turning on pre-cocking increases the occurrence. Not tried PC and AB together…I was under the impression that the AB++ couldn’t have both “on” at once (even if the LEDs said they were both enabled, only one was working?) Having run it without the upper receiver on I can see the piston sitting further back each shot until at some points it double shoots. Just given it another test and it was good as gold! Bloody typical! Will still throw an old motor in just to see. Might try a new cut off lever and / or trigger contacts if that fails. It might be down to the cut off nub on the spur gear being a hair different and messing things up. UPDATE: Just tried with PC on 1 / AB on 2 to 3. Still double tapping. No PC and AB on 1 and no double tapping… but the occasional failure to cycle (sad whiring noise!) Just fired 150 times with everything OFF and it didn’t skip a beat! I love transient issues! Thanks for all the suggestions, will keep in mind if it starts playing up again.

Thanks all, I am running a 300mm x 6.01mm barrel and 0.28g BBs. Cut off lever is working fine and being tripped by the sector gear. I am starting to think I will sell the Warhead motor and fit an XT or SHS one as this is only a back up gun and spends more time being used as a test bench than actual use 😁

I have recently fitted some 13:1 Solink helical gears to my M733 build. Everything else stayed the same - warhead motor (mid speed one?) 7.4v via a Perun AB++ Totally flawless with the SHS 13:1 gears but a bit noisy, hence the helicals. Now it has started double tapping every 20-40 shots. Tried turning off precocking, turning on “sniper delay” or using AB to no avail. Stripped it down the check trigger trolly and cut off lever - apart from a little greasy gunk I dug out all working fine and shimming spot on. Took one tooth off the pick up side to drop power a smidge (right on site limits with an M95!) and it is still doing it. Any ideas?