Initial Impressions of the TM SOPMOD M4 AEG

[Berggy]

Hi sunburnhammer. Did u toyed with the hopup as well? If not, try disassemble the gearbox and and check the tappet.

 

Sent from my GT-I9300 using Tapatalk

 

 

[ikliiu]

Check your inner barrel too, a dirty barrel might cause this.

[sunburnthammer]

Hop wasn't touched, barrel is clean too. Hop full on with .25's was giving an fps of around 270

 

 

Sent from my iPhone using Tapatalk

[Berggy]

There is definitely something wrong with 27x fps for .25 bbs?Stock gives ~94mps around 300fps

 

Sent from my GT-I9300 using Tapatalk

 

 

[SixtyNiner]

It could be your air nozzle and tappet plate fitting. It's easy to put the air nozzle in out of alignment. There's a bump in the air nozzle that needs to sit in a notch on the tappet plate.

 

Or if your gun is front wired the hop unit could be pinching a wire, pushing the hop to the side slightly. I've had trouble with this, it's very tricky getting the wires out the front of the gun without them getting caught somewhere.

Edited December 10, 2013 by SixtyNiner

[sunburnthammer]

Yes it is front wired so it could be that

 

 

Sent from my iPhone using Tapatalk

[Richard Y]

range = power + spin.  logically.. could be just bad timing, and your rubber is worn now so needs more hop to put more spin on it, could be the weather cuasing the rubber to be harder thefore less tack therefore less spin.  Could be the power levels, are you sure they arnt less now than they where before?  Thoretically things skrink in winter, so cold environments should give you a lower fps reading during game play than on the at home chrono.  lots of potentially effecting factors.

[TheFull9]

Anyone have any recommendations at all for stocks (or modification work to the buffer tube?) other than the TM ones that'll lock nicely on these guns?

 

I'm going through an update on the SOCOM I first picked up and I know the RS or PTS MOE stock functions nicely, but everything else seems to encounter issues.  I'm not sure whether it's the depth or the diameter but the locking position holes running along the bottom of the TM buffer tubes aren't as large as they would be on a real buffer tube.  On the MOE stock this is alright; the locking detent doesn't sit fully home so the adjustment lever has a little bit of wiggle room but since it's plastic on plastic and fit closely it doesn't make a rattling noise when you run.  On any Magpul stock with the friction lock however the way the detent sits (i.e. not as far in as it should) prevents the lever on the friction lock clicking in to place and it gets stuck about 70% of the way which is annoying and just looks a bit rubbish to me personally.  On non-Magpul stocks you end up with the adjustment lever flapping around as you move which is even more annoying.

 

I'm tempted to just go with the MOE stock since they're comparatively cheap and do work, but and since I just installed a mid-length MOE handgaurd and will be installing the MOE pistol grip I'm going to end up with a gun that just looks like the PTS ERG Scout.  Not that that's such a bad thing but it kinda feels like a wasted effort then.

Edited December 15, 2013 by CKinnerley

[PureSilver]

Depends. If you're feeling brave you can pull the stock tube, have it lathed down slightly, painted, and fit a UBR. For less work, you can buy the ARS endcap (a worthwhile upgrade in terms of quality, too) and fit an A1/A2-or-similar fixed stock - very cool for SPR Mk.12 Mod.0 clones.

[TheFull9]

Good options don't get me wrong, but it's a collapsible stock in the traditional configuration I'm after.

[Richard Y]

i think all fit but you have to remove the pin on the stocks and shorten it.  those it wont be poking out and the adjustment lever flapping.

[TheFull9]

Yeah I've not had a problem with general fitment it is just the locking pins.  Any idea how thick the metal is on the buffer tube i.e. between the inside and the surface in each locking hole that the stock's pin sits against?  As in would a drill just fly right through in to the tube and wreck it (in which case as you say it's going to be better to shorten the pin on the stock) or could some material be removed?

[JCheeseright]

I'd expect a decent amount of space under the detents on a SOCOM, in a SOPMOD obviously the wires are hidden underneath but with a SOCOM I'd be willing to bet a fair amount it's just a void because Marui will have used the exact same buffer tube with a different bit underneath so you don't have the battery contacts at the end. 

[TheFull9]

I did not think of that.  All the guns I've got are SOCOMs so I've never really looked in any depth at the way the wiring's setup in the tube of a gun that uses the in-stock battery.  I shall investigate further next time I can get hands on one of my rifles.

[JCheeseright]

If I'm right and the stock tube is the same, you've got probably 3-4mm extra space if you drill out the holes. 

[Lord Vader]

Regarding the friction lever on Magpul stocks, I can only say that my RS (non-PTS) CTR stock fits perfectly on my Socom, all levers close completely and nothing is wobbling or flaping around. This might or might not be helpful for you, but I thought I let you know.

[Zereck]

Anyone know where can I get a SURUS recoil weight? I bought the CNC buffer tube for it from Echigoya a few months ago but they were out of stock of the SURUS back then. I asked them if they make new ones and they replied "soon" but that was a while ago so I started looking around but found nothing.

[arne71]

I`ve asked  asked the same question about their cnc products, but they`ve never replied.  But since Echigoya is  located in Japen, maybe "soon" is a little bit quicker than in the rest of Asia.

[Richard Y]

 

 

Pretty damn thin... like i say, id remove this .. and the pin from the stock.. then offer up the pin to the holes, id make sure it actually fits in first.  if it does fit the od isnt the issue but length must be, so then i would shorten the pin.  The benifit of shortening the pin on the stock would be making a low cost aeg stock compaitble with all your recoil shocks.  if memory serves its only about 1mm thick so at most youd be shaving 0.1 - 0.5 out of each hole.  if its flapping that much youll need whole mm's ..

[Richard Y]

unfortuantly im not getting replys from ARS, so whats out there at the moment is all thats left until they make more, all echigoyas custom items are made by them, so if there listings are out they will be until ars start making again. 

[PureSilver]

Anyone know where can I get a SURUS recoil weight? I bought the CNC buffer tube for it from Echigoya a few months ago but they were out of stock of the SURUS back then. I asked them if they make new ones and they replied "soon" but that was a while ago so I started looking around but found nothing.

 

I`ve asked  asked the same question about their cnc products, but they`ve never replied.

I'm in exactly the same position; they told me they were moving their CNC facility and would have three months of downtime; this would have been in January or something so they need to get their act together. No-one else will sell them as insofar as I am aware Echigoya are the only distributor of Airsoft Research Syndicate (ARS, the makers of the SURUS, the buffer tube and other parts) parts. Maybe if the three of us start bombarding them with e-mails they'll take notice? I'll PM you two later.

[Richard Y]

I stock ars parts .. Untill they went dark.

[SixtyNiner]

CKinnerly: I have a PTS CTR stock on my Socom and it fits without rattle or gaps. It really does lock down nice and solid, way better than the few other airsoft stocks I have tried.

 

I've been toying with the idea of getting a PTS UBR stock (the model for gas blow back rifles) and seeing if it can be modded for a lipo. On top of the mods required to the Socom stock pipe it also would mean dismantling the Magpul stock tube and trying to route wires through, and then dremeling out behind the storage are to see if a small battery would fit. At best I'd say there would be a 50% chance of success, and UBR stocks are pricey, so I don't think I'll ever get around to it but it would be sweet if it worked.

[JCheeseright]

surely fitting a UBR to a SOCOM and leaving it front wired would make most sense?

[PureSilver]

I stock ars parts .. Untill they went dark.

 

Did you get them from ARS directly, or from Echigoya? And how dark are we talking? There's a hefty finders fee for whoever can sell me a SURUS.