THE TM MWS thread

[Wavey_Gravey]

Looking for a 7inch inner barrels would a hi-CAPA  or MP7 barrels be okay or ae they cut different to a normal MWS barrel?

Thank you.

Laylax Nineball 162.5mm 6.03 inner barrel is what I used for my 7” build.

 

[GothicGhost]

I'm pretty sure that as long as it's a GBB spec barrel, you're good. Happy to be corrected. 

Laylax Nineball 162.5mm 6.03 inner barrel is what I used for my 7” build.

Thank you both.

 

[rj1986]

So I've got the hankering for a SBR/Honey Badger style build - I've already got one with a PDW style stock.

I can't find a nice style rail though, the closest I've seen is a Nuprol one (out of production) or a Dytac SLR 6.75". Any other recommendations?

 

[Lyxis]

Hello everyone 

im running into some issues regarding the hop up on my MWS

For the moment the only parts installed are a Modify Beige rubber, a Laylax hop arm and a PDI MWS barrel (250mm for 6.01mm in diameter)

I have two issues, both related but somehow independent too

the first I have is when tightening the barrel nut, the hop up unit tilts to the side and the arm get stuck

i can increase hop but the dial is pretty hard to rotate. Once set, I can turn down the hop up how I want, the arm is stuck in his position and won’t move at all, keeping all the pressure down until I shoot (not ideal at all)

i saw that depending on how I maintain the outer barrel while tightening it can help, but my hands are not as strong as I need to tighten it down with the wrench

I can manage to solve it a bit but it’s still annoying (since it’s all stock parts of the URG-I version except the 3 parts mentioned earlier) 

The second issue is the most concerning

and I noticed it when I got the first one a bit solved

My hop up dial is actually moving down on each shot

i can set it however I want, when I shoot the hop up is turned down until minimum hop is applied and BBs rolls down the barrel

I figured it out when I was shooting, I could fire 2 or 3 rounds correctly, then I can see the trajectory going down, until I have literally no hop, and BBs are falling down when I tilt the rifle. 
this wasn’t happening when I got the gun stock, and it went through 500 rounds before, no problem

but now the dial won’t hold the hop setting, even though I never took appart or touched the hop unit inside the upper receiver (I only took appart the unit in the outer barrel for the bucking)

Sorry for the wall I just wrote lol

but I never encountered this issue nor saw it before on MWS discussions (may have missed it)

is there any way to fix that ?

If you have a permanent fix for the first part it would be cool, but I think I can work with it

But the second issue is the most concerning 

thank you !

 

[Salamanca]

Guns Modify do a metal hop adjuster wheel. It has 36 adjustment increments as apposed to the 24 in the standard plastic adjuster wheel. Subsequently it is much more precise, and has a metal plunger with a strong spring. I have fitted it in 2 of my MWS rifles, and it holds zero perfectly. It is rated to only lift 0.35bbs, but with the high end hop rubbers now available, like the Pink Flamingo and the ML MR hop, I have found it has no issues with 0.40s and 0.43s in my DMR builds. However you will likely have to buy it from HK from somewhere like Airsoft global, though you might get it from Fire Support.

 

[Wavey_Gravey]

Text

Issue number 1 is over tightening the barrel but it most cases. Try loosening it off and retightening with a bit of card / plastic in both sides of the hop to keep it straight, worked for me before.

Second issue sounds like everything’s too loose, could even be you’ve gone too loose on the barrel but. Have you checked the screw in the mock gas tube hole that holds the hop dial in place? 
 

Take some pictures of around the hop area and post them up, might help.

 

[Lyxis]

Thank you for the first solution

seeing how tight the barrel nut was stock when I first took it apart I find it weird it could be caused but over tightening it

But I got a razor blade that I stuck on the side it was moving when tightening it all and now it’s all good

For the second issue, I looked around the gun and took it appart to see what I could do

i tried sticking a thin layer of soft plastic from a zip bag under the screw, to act like an o-ring, and got something to have more tension in the spring that pushes the pin to get the clicks

From the few shot I took it seems like working 

but I’ll have to test it extensively more to be sure I worked

thank you for your help !

 

[priorofori]

text of second issue

I registered just to reply, so I hope it helps. Your second issue is probably caused not by hop up itself, but by nozzle guide on top of BCG. Every time bolt is returns to battery front of the nozzle guide catches on hop up wheel and it moves it a little. Just file it down a little and it should be good.

 

[Charlie36]

Hello everyone 

im running into some issues regarding the hop up on my MWS

For the moment the only parts installed are a Modify Beige rubber, a Laylax hop arm and a PDI MWS barrel (250mm for 6.01mm in diameter)

I have two issues, both related but somehow independent too

the first I have is when tightening the barrel nut, the hop up unit tilts to the side and the arm get stuck

i can increase hop but the dial is pretty hard to rotate. Once set, I can turn down the hop up how I want, the arm is stuck in his position and won’t move at all, keeping all the pressure down until I shoot (not ideal at all)

i saw that depending on how I maintain the outer barrel while tightening it can help, but my hands are not as strong as I need to tighten it down with the wrench

I can manage to solve it a bit but it’s still annoying (since it’s all stock parts of the URG-I version except the 3 parts mentioned earlier) 

The second issue is the most concerning

and I noticed it when I got the first one a bit solved

My hop up dial is actually moving down on each shot

i can set it however I want, when I shoot the hop up is turned down until minimum hop is applied and BBs rolls down the barrel

I figured it out when I was shooting, I could fire 2 or 3 rounds correctly, then I can see the trajectory going down, until I have literally no hop, and BBs are falling down when I tilt the rifle. 
this wasn’t happening when I got the gun stock, and it went through 500 rounds before, no problem

but now the dial won’t hold the hop setting, even though I never took appart or touched the hop unit inside the upper receiver (I only took appart the unit in the outer barrel for the bucking)

Sorry for the wall I just wrote lol

but I never encountered this issue nor saw it before on MWS discussions (may have missed it)

is there any way to fix that ?

If you have a permanent fix for the first part it would be cool, but I think I can work with it

But the second issue is the most concerning 

thank you !

i bought the same URGI MWS and did very similar mods and had the exact same problems.

it is because the hop-up adjuster is moving and therefore getting caught on the bolt as it fires forward for each shot. This then turns down the hop wheel and your bb’s gradually go lower and lower.

As another user has posted, you need to re secure the screw that holds the hop-up adjuster wheel. It’s where the gas block tube starts inside the upper receiver.

I thought I had broken this part when taking apart the URGI to change the hop-up rubber and bought the Guns Modify metal hop chamber and hop adjuster. However i wouldn’t spend £60 until you’ve tried the above. 

 

[Julien]

Hello,

I have an MWS M4A1 and would like to use it on green gas, I read a lot about it and saw videos, but I have to admit I don’t know where to start. 
I ordered a Bavtac Nozzle return spring as the stock one is prone to break at some point with GG. 
I also ordered a Bavtac Nub because I would like to play with 0,32g bbs (I have a lot as bought in bulk for the rest of my airsoft toys). 
Last thing is there is a 1J limit where I play so I took a FEDA Valve (NPAS) with the bavtac parts to fine tune the Joules as close as possible to the limit depending on temperature.

I put a coin (1€) at the bottom of the buffer tube as I tested it and saw the bolt screw was touching the lower body part (over travel). 
I bought 3 additional GM Pmags at the moment. 
 

Are there things I forgot? Should I change something else? Stock buffer / buffer spring is ok? Stock BCG / Nozzle is also ok? 

Thanks in advance 

 

[Wavey_Gravey]

Should be good to go, you’ve got all the right parts, just take your time fitting them and test as you go.

 

[Julien]

Thanks, 

Would like to keep it as stock as possible and avoid changing parts if there isn’t a real need behind it or a known high risk of break. 
 

 

[C-Diddy]

That's the wisest way IMHO. 

All the stock parts you listed are great. If you can fi d TM nozzles in stock, you could pick a couple up.

GM parts are, in my experience anyway, generally good, but play better with other GM parts, particularly in the BCG etc. 

Avoid Angry Gun internals if you can, but you've got the parts most prone to breaking, so run and enjoy it ?

 

[Lyxis]

I registered just to reply, so I hope it helps. Your second issue is probably caused not by hop up itself, but by nozzle guide on top of BCG. Every time bolt is returns to battery front of the nozzle guide catches on hop up wheel and it moves it a little. Just file it down a little and it should be good.

Thank you

I can’t seem to locate where it could catch and what I have to file down. Is that part supposed to be plastic or metal ?

from what I’ve done to the hop up, it seems to keep the setting

and I’ve tightened the hop adjuster screw behind the gas block

but I still have an inconsistent hop

i tried several buckings, still the same issue

sometimes it’s working good with consistent hop, and then a flyer, followed by several shots falling way below the target, and then it works again

i tried a Modify Beige, Modify X-range 55 and a ML Autobot

none of them wants to work properly

maybe my mags still have some of TM’s oil in the BB guide tube and that could make them slip on the bucking 

idk I’m kinda lost tbh

i can’t locate the issue

 

[GothicGhost]

Got myself another mws after selling my first one few years ago ?

Firesupport got nice deal as you probably seen £560 with 3 extra mags ?

Also got vector optics scrapper gen 2 RDS.

View attachment 122300

 

[Charlie36]

Has anyone got a fix for a Guns Modify P Mag MWS  that only takes about 2 seconds of gas before stopping itself filing up anymore and then only shooting 5-10 BBs before running out. I have held the green gas can against the filler valve for 20 seconds and get almost no gas inside the mag. There are no leaks either? 

 

[Salamanca]

I have found p mags slow to fill, some more than others. What I do is heat the gas cannisters first by putting them on a radiator for a short while to increase internal pressure. If the cannisters are half full this is essential as the pressure is too low to over come the fill valve, and the internal gas pressure for any reasonable period of time. In terms of filling at game site , I keep the cannister in a thermos flask thermal jacket with two small rechargeable hand warmers on either side. I bought both the thermal jacket and the hand warmers cheaply on Amazon. Also small £9.99 digital scales are a great tool for keeping tabs on gas levels- an empty GM P Mag weighs 339/340 grams, and full to the limit is around 370 grams, with consumption at around 5 bbs per gram.      

 

[hunter511]

Im officially intrigued. Anyone got any ideas for how to build one of these? Forgotten weapons strikes again.

I can probs find the mp5 shroud and can I suspect its gonna be the front end underneath that'll be the issue.

View attachment 122732

 

[JimFromHorsham]

Im officially intrigued. Anyone got any ideas for how to build one of these? Forgotten weapons strikes again.

I can probs find the mp5 shroud and can I suspect its gonna be the front end underneath that'll be the issue.

View attachment 122732

if I recall @Davegolfis building one , I went with a 416 SD6 ? 

View attachment 122747View attachment 122748

 

[Cipher-032]

Gunna pop in here as Ive got a bit of a issue with my MWS.

Ive got the annoying issue of Semi auto "run on". Basically if I fire the gun continuously in semi, it will some times it will fire more than one shot.
I did service the trigger pack with a small amount of Superlube MP grease, but Ive since learned/remembered that the MWS trigger pack doesnt like grease. So since Ive flushed it out with silicone spray as advised by Ollie Talks Airsoft. How ever he did mention about replacing the hammer? Nothing on what exactly. But sometimes as ive been testing this issue returns.

Ive said bugger it, and ordered a GM Full spring set. I do have a Dytac spring set in the trigger box currently but its several years old now.

I do also have a GM adjustable sear B for the trigger pull, and adjustable flat face trigger, but all grub screws are OUT so they dont do anything currently.

Curious if anyone else has run into this issue, and if so share your fix?

Video of the issue here:

https://youtu.be/jGMGM4Z-P8o