When I am firing I find the hammer does not return to battery very well. I have a video of the issue and you will see the hammer seems kind of weak. This means it is not hitting the mag release valve with enough force to release gas. Any ideas?
I can only assume I have done something after replaced the standard spring with the CO2 upgrade one.
G&G MG42, PPS Kar98k, KWC P08 and patiently awaiting the KWA MP40 GBB.
Video of the issue, there is a fully gassed mag in there.
G&G MG42, PPS Kar98k, KWC P08 and patiently awaiting the KWA MP40 GBB.
Try tightening the screw holding the hammer spring in and threadlocking it. Mine worked loose after a handful of shots.
As above ,you have to take the front of the bolt with the nozzle off then there is a long screw that goes through the hammer spring and it gets loose reducing the tension on the spring ,just take it out ,add some locktight and screw it back in .be careful removing the front of the bolt as there's a ball bearing on a spring that falls out and is easy to loose ,to remove the front is easy ,there's a screw in a slot on the bottom of the bolt ,just remove the screw and pull the front off ,just watch out for the ball bearing and spring .
armoury
m1a1 Thompson,sten mk2,mp40,stg44,sterling,mk2 bren gun,lee Enfield no4 mk1,Mauser Kar98, Walther ppk,smith and Weston m10 and Mauser m712
Give me a big enough hammer and a place to stand and I could fix the world.
i'll kill a man in a fair fight or if i think he's going to start a fair fight or over a woman or.......
a problem shared is a problem halved ,but an advantage shared is no advantage at all
if a job's not worth doing then its certainly not worth doing well
Thanks guys, but I have done that. In fact I replaced the spring again today just in case it was a dud.
It did not work from the very first shot.
G&G MG42, PPS Kar98k, KWC P08 and patiently awaiting the KWA MP40 GBB.
It's almost like I am supposed to fit 2 springs in there as they'd fit. 
With the one spring and with the long screw in there nice and tight has no effect. It is still too weak to hit the release valve with any power.
G&G MG42, PPS Kar98k, KWC P08 and patiently awaiting the KWA MP40 GBB.
I had a bad spring. I'd not thought to measure them, until last night.
It seems that one was around a quarter of an inch shorter.
G&G MG42, PPS Kar98k, KWC P08 and patiently awaiting the KWA MP40 GBB.
Did you get a replacement? Is it working now?
Did you get a replacement? Is it working now?
I did have a spare and all seems good now. But thanks for the help guys.
G&G MG42, PPS Kar98k, KWC P08 and patiently awaiting the KWA MP40 GBB.
hi
i have same issue, where can i get a replacement. spring i dont have a manual. or a part number or even where to buy replacement. can any one help.
cheers sean
hi
i have same issue, where can i get a replacement. spring i dont have a manual. or a part number or even where to buy replacement. can any one help.
cheers sean
The normal cause is the main screw coming loose inside the bolt. Have you put some locktite on there?
G&G MG42, PPS Kar98k, KWC P08 and patiently awaiting the KWA MP40 GBB.
yes ive done that..........
