[m102404]

Throuble Shooting

While there are plenty of posts relating to issues with the WE systems...in general they can be traced back to a small number of root causes. The good news is that there are resolutions for these issues.

Most jamming, venting, sticky operation issues can be traced back to inadequate lubrication. There are mechanical bearing parts...there are gas sealing contact points....they must remain lubricated.

When the "new" hopup (black vs. original green) came out there were quite a few reports of way too much hopup being applied...and some torn ones. The root issue is that the nub of the rubber stuck down too far into the barrel even at the lowest settings. You can either mod the hopup rubber to apply less hopup....or you can try other hopup rubbers (i.e. original green, Stinger)




Valve Freezing and Gas Venting
- NPAS valve freezing open

Too Much Hopup
- I Reccently gammed the M4 and noticed my hop up is realy finicky. If I move it a small turn the hop up is so strong its holding my nozzle in place and when I let it off I get shots flying left and right. I was using .25 bb basterds while shooting, my stock barrel/set up is the new Gen.2 hop-up system with 6.03mm inner barrel. I am also NOT comfortable perfoming the hop up mod myself as I dont trust myself to not srew it up
- I replaced both of my WETTI M4 uppers hop ups with the Stinger hop up. If you don't want to go this route you can take the hop up rubber off and trim down the integrated "nub" so that the adjustments are a little more tame.
- I'm not sure if it's me or what but twice now I've had my SCAR where after firing for some time the BB's start skyrocketing (too much hopup) so I turn my hopup off and they either continue to shoot at planes or it's like throwing a wiener down a hall in terms of accuracy. After a while of this bb's then get constantly jammed in the barrel. When I take it appart I find the hop up has ripped (now theres a flap). This is the second time this has happened. Are there any better hop ups for the SCAR out there.

Too Little Hopup


Safe/Semi/FullAuto Operation
- But one thing that is bothering me.. it there something wrong in the trigger box if I can move the selector switch from semi to safe when the hammer is uncocked? Is a problem with the sear? I only did it a couple of times to figure it out why but couldn't.
- Not sure if i'm crazy or something but is it strange to put the selector switch on safety when the charging handle is not pulled?
- The m4 has to be in Semi or Safe if your mating the upper and the lower. It can not be in Auto.
- Like the RS version you can not put it on safe unless the weapon is cocked.