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THE TM MWS thread

The_Mixed_One said:
Hi, im just about to pull the trigger on a second hand MWS :D The problem is that it is missing it's mag release ? Do i have to order a original mag release from asia or would a aeg mag release work? Maybe the g&p one? 

Hi, im just about to pull the trigger on a second hand MWS :D The problem is that it is missing it's mag release ? Do i have to order a original mag release from asia or would a aeg mag release work? Maybe the g&p one? 
Click to expand...
It might, have you tried eagle6 or fire-support? Seems an odd thing to go missing lol

 
I know this is an MWS dedicated thread but i think the MTR so similar it is internally, they are essentially the same gun expect for a few bits.

Just got an MTR16 and i intend to make a few mods to it to make it a DMR build, i dont mind spending a bit, just want to spend wisely. I know i ill probably have to change part of the hop but i really want to try to avoid spilling some of that TM fairy dust. I plan to be shooting .30g and above BBs. I am aiming around 430FPS on .20g BBs as my local sites are around 450FPS so i am factoring gas variations and joule creep, currently the MTR16 is shooting the standard 1 joule on .20g.

Got a few questions

  1. Will an NPAS such as the RA-Tech NPAS help me in pushing up the FPS?
  2. I've noticed that the inner barrel stops some 3 inches shorter of the outer barrel, would a longer or tighter inner barrel help up that FPS?
  3. What is the preferred choice here, The SixG nub or the all in one Laylax hop arm (i already have one), i don't mind and may even prefer using the stock TM rubber?


My thoughts are:

  • Change the stock barrel with tight bore barrel that is longer than the stock 250mm one, this should in theory up the FPS (right?)
  • Change the stock arm entirely and replace it with the Laylax arm to allow me to lift heavier BBs.
  • Get the RA-Tech NPAS in case the above mods put me over 450FPS so i can tweak it down or if the FPS is a tad too low so i can turn it up.


Thoughts 

TIA

 
I have a Mk12 upper (With it’s own BGC) for my MWS set up as a DMR. Currently firing bang on 315 FPS on a .4g bb (318 FPS on a .4g bb is equivalent to 450 on a .2g bb).

I didn’t upgrade much as far as the internals go to get the power and accuracy my list was:

- SixG Brass nub (so I can hop heavy BBs)

- npas valve (so I can tune the FPS, it goes higher as well as lower than stock).

- Maple Leaf Crazy Jet 455mm VSR Cut Barrel.

That’s it in terms of internals. In terms of externals you will need either a silencer or an 18inch outer barrel to cover that inner barrel (I was always going to do a MK12 upper so just chose the longest inner barrel that would fit in the 18” outer).

other than that everything else (sights, bipeds etc.) is optional.

There are other ways to go (e.g tighter bore barrel will get more FPS, so won’t need to be as long), but this was very cost effective and has been super reliable as I’m not messing with spring tensions or other stuff that could impact reliability.

As an aside I have found the stock TM hop rubber to be the best balance of performance and durability. There are hops that perform better (some of the maple leaf buckings and the modify tan spring to mind), but I have found they don’t last that long at DMR FPS.

Edit: just to add there are still a few turns left on the npas so I could go higher FPS.

Second Edit: I also permanently modified the safety/selector switch to semi only (needed to comply with U.K. law). There is a YouTube video on how to do this.

 
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@Shizbazki don't worry about inner and outer barrel lengths being close to each other.

Try to get upto FPS with a 370mm rather than any longer, it only hurts accuracy.

Dont go tighter than 6.03mm bore.

@Wo1f had great results at 80M range with his DMR setup.

 
Davegolf said:
Try to get upto FPS with a 370mm rather than any longer, it only hurts accuracy.
Click to expand...
I am interested in why this is believed to be the case.
 

I have had 250, 370 and 455 mm barrels (all Maple leaf Crazy Jets if it makes a difference) in my MWS at various points and still have each of these barrels in a GBBR (the 370 is in a WE 416) and at the same FPS (350) I couldn’t tell any meaningful difference in accuracy at 10, 25 or 50m (for me this was the most compelling argument for my MK18 build as there was no performance detriment to the shorter barrel).

As far as I am aware assuming the barrels are true with minimal imperfections barrel length shouldn’t make any difference provided it is long enough for the BB to stabilise in the air flow.

The only difference I am aware of is longer barrels will produce increased FPS provided there is sufficient gas volume released.

 
This is 100% true. Longer barrel gives more FPS but there’s no accuracy improvement. There is no single proof that says otherwise.

 
Cyberlawyer said:
I am interested in why this is believed to be the case.
 

I have had 250, 370 and 455 mm barrels (all Maple leaf Crazy Jets if it makes a difference) in my MWS at various points and still have each of these barrels in a GBBR (the 370 is in a WE 416) and at the same FPS (350) I couldn’t tell any meaningful difference in accuracy at 10, 25 or 50m (for me this was the most compelling argument for my MK18 build as there was no performance detriment to the shorter barrel).

As far as I am aware assuming the barrels are true with minimal imperfections barrel length shouldn’t make any difference provided it is long enough for the BB to stabilise in the air flow.

The only difference I am aware of is longer barrels will produce increased FPS provided there is sufficient gas volume released.
Click to expand...
So vsr barrels fit? I was under the impression that's mws had a different cuts? 

 
They are VSR cut, but some fit better than others as the specification varies between suppliers. I have found Maple Leaf Crazy Jets to be a good fit.

 
That kinda sucks for me, I've just ordered a pdi 250mm 6.01 because that's all I could find online. 

I do have a spare edgi vsr barrel but it's 410mm and I'm running an 11.5 outer.

 
Cyberlawyer said:
I am interested in why this is believed to be the case.
 

I have had 250, 370 and 455 mm barrels (all Maple leaf Crazy Jets if it makes a difference) in my MWS at various points and still have each of these barrels in a GBBR (the 370 is in a WE 416) and at the same FPS (350) I couldn’t tell any meaningful difference in accuracy at 10, 25 or 50m (for me this was the most compelling argument for my MK18 build as there was no performance detriment to the shorter barrel).

As far as I am aware assuming the barrels are true with minimal imperfections barrel length shouldn’t make any difference provided it is long enough for the BB to stabilise in the air flow.

The only difference I am aware of is longer barrels will produce increased FPS provided there is sufficient gas volume released.
Click to expand...


Upto about 50M you probably wouldn't notice much difference, but for the purposes of DMR and Sniper with longer engagements sensitivity of BB / barrel contact increase a lot!

Proof in sniper testing with a BASR @ 500fps, swapping to longer than even 303mm hurt accuracy in a big way at 75M and beyond.

We were getting accurate measured shots to torso size target at 100M with a 303mm!

In the same vein, tighter bores increase this sensitivity again.

The above bolty was running a 6.05. 6.03 is the smallest I'd go on any RIF other than a pistol.

Best

Dave

 
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