SSPKali

Yeah it was the AG nozzle and components. With out some fettling with a file the internals lack the flat sides that the TM nozzle bore had. I have ordered a G&P valve stopper (that attaches to the front of the nozzle spring) as it has 3 different sets of holes drilled in it for the tiny Phillips screw to locate in - each hole allows the stop to sit forward (lower power), in the middle, or further back (higher power). Zero chance of self-adjusting or doing odd things to the valve flow Hopefully this alomg with the DP valve will give consistent results, as before, but allow low-med-high power tuning for varying temps. Yeah velocity will vary once the mag settles down, and if you fire shots quickly there will be some cool-down and drop in pressure. I have found that the spread of velocities is worse with 0.20g. Heavier ammo seems to keep the variance smaller. I would say +/- 8 fps between shots is good, and it will probably drop 20 to 25fps over a mag full. Makes next to no difference to accuracy / performance.

OR use a gas rifle where 35rds per mag is usual! Once you get used to it you can work around it and know when you can make a shot and when to hold off and get closer. On the plus side carrying 6 heavy mags around the field is a great work out!

Just tried to set up my spare Dynamic Precision bolt with an AG nozzle set up - absolute tosh. FPS was +/- 18 and all over the place! Replaced it with DP nozzle (very tough, dense feeling plastic, all DP springs) and RATech Black NPAS and it is much more efficient and FPS is pretty consistent. I will be taking the springs and screws out of the AG valve as back-up last-ditch spares and binning the rest!

Dynamic Precision MWS rocket valve test. Purchsed from the great people at Fire Support. https://www.fire-support.co.uk/product/dynamic-precision-enhanced-nozzle-valve-for-marui-m4a1-mws It looks a lot like the polymer TM one but is made from Aluminium. It fits nicely in the nozzle and works with the TM spring. Testing it in direct comparison to the TM set up with ASG gas and 0.30g BBs there was an average gain of 8fps, but a reduction in fluctuations between shots (+/-4fps, vs +/-7fps with the TM valve) Switching to the stronger DP spring gave the expected jump in output, raising to an average of 293fps (285fps limit on most fields with 0.30g) Bottom line is that it is probably easier to get one of these than the TM one, and in doing so it won't change the gun too much. I plan to fix a thin disc to the back to try and drop the fps while using the stronger spring so I can have this in the DP lightweight bolt I have spare.

Solid work 👍🏻 I notice that there isn't a linear relationship between the 0.30g and 0.20g results - Take for example the TM bolt set up with an average of 285fps on a 0.30g, the same energy 0.20g BB should be going about 350fps....but the result is only about 320fps. I guess this is to do with the acceleration of heavier BBs, time to clear the barrel and effect on how fast the rocket valve closes. In all AEGs I have tested shooting at 285fps with 0.30g will always fire a 0.20g at 350fps just by changing the ammo weight. So well below the limit if tested at a site on 0.20g BB, but as soon as you put in 0.30gs to play and it might be (slightly) over the limit 🧐 UPDATE: I have just tested my stock bolt/nozzle MWS with both 0.20g and 0.30g BBs (same brand, ASG gas, 11degC in the shed) and found that over 10 shots: 0.20g BB = 312 fps / 0.9 Joules 0.30g BB = 270 fps / 1.02 Joules 0.36g BB = 244 fps / 1.0 Joules ***UPDATED*** Looks like the short barrel and valve design keeps the power within Japanese limits even with very heavy ammo (IIRC TMs' are designed around 0.25g) ***UPDATED*** If I "adjust" the 0.30g BBs to equate them to 0.20g giving the same power predicted average is 331 fps, about 20fps difference I have a Dynamic Precision valve coming with my FireSupport order so will give that a try with the exact same set up and see what difference the alloy (heavier) valve will make. I am guessing a boost to the power / fps.

I found that the little valve spring can make a big difference. I tried the set up with the well used TM spring and a newer, stiffer and longer (Ooh matron!) RATech one. The RA tech spring gave another 10-15fps as it kept the valve open longer. I am guessing that might explain the difference along with minor variations in hop applied and chrono tollerences.

So a £1600 gun that gives you blowback-ish but stops when the weather is damp? Or buy a Marui MWS, 5 spare mags, a box of gas bottles, bag of BBs, a speedloader and a nice Vortex optic....and have enough money left for a dozen game fees 😃

Today was my designated tinkering day with the MWS before my first post-lockdown game next Sunday at Spartan Woodland, Bristol. I have set the MWS up with all stock bolt, nozzle and valve (NOTE: I have taken 0.15mm off the back of the valve to up the output to about 10fps). Running 0.30g BBs through a CrazyJet 250mm barrel, Modify tan bucking and Laylax hop arm. The shed was a balmy 13degC (or there abouts) and the mags and gas were all at ambient temperature. I gave each mag a 5sec fill, in bursts of 1s and then left for 5mins to let the temp settle. Each gas was given 5 shots over the chrono, with 1s gaps. I often finished up with some full auto to check on cool-down. ***All FPS given as 0.20g BB equivalents*** Nuprol WHITE = 330fps. Still very snappy shooting and not much cool down after 20rd full auto! Nuprol GREEN = 340fps. Benchmark for regular "green" gas. Does cool down a bit. Nuprol RED = 395fps. Eek, well over the limit so I would keep for days when the temps are in single digits. Abbey Vertex Predator = 341fps. Apparently a "powerful gas for heavy weapons" - or just another green gas in an orange can ASG Ultrair = 340fps. Pretty much the same as any other green gas, but Patrolbase have a "Two for £10" offer so I have 8 cans of the damn stuff! Interesting that the difference in Nuprol WHITE and GREEN is only 10fps. I purchased that can for an old TM MP7 I had that (with a tight bore barrel) was WAAAAY too hot to use. That dropped the fps by 20-30 IIRC. Maybe the MWS is just a very efficient system? I checked the accuracy and zeroed the Visionking LPVO scope. 34mm group at 12m bench rested. Should be ok for hitting man sized target at 20-50m.

I can't recall a specific issue with the barrels but I and others have had endless issues with gas nozzles / NPAS, buffer tubes, rails and rail nuts, supressors/flash hiders, charging handles, bolt catches and mag releases.....

The issues seem to be that they "sort of" fit...if you are lucky. And if they do fit they might actually make things work worse than the stock ones.

I would check on the customs fee and VAT thing, it is your property being moved between countries for your own use. No different to taking a suitcase of clothes on holiday with you I would see about using a shipping firm (as used to move peoples belongings when emigrating) rather than a commercial courier who seem to slap spurious charges on everything and have awful customer service!

Alcohol pre-injection swabs. Tear them in half and use on the cleaning rod supplied with the gnu You can get a box of 100 for a few quid on Ebay or Amazon.

Wow that spaffs them all over the place! Ultimate lazy-gun / skill compensator 🤣

I have asked people to surrender when I have crept up on them and have the barrel almost touching them, as it is more polite than a point blank shot! I have also been given the option, and was very glad of it, when 4 people with NODS managed to walk up right behind me at Cope Hill Down in a very dark building! I turned around to see the distant street light glinting off the business ends of four M4s inches from my chest 😬

A more interesting proposition might be using the thermo plastic that gum shields use so a user can trim and shape to their own face? Maybe make it with in-moulded mesh for the mouth. TBH the cheap mesh masks are pretty easy to re-shape and tweak to the users (unless they have the face of Gonzo!) and stuff like DeltaFacePro is so light and comfy I am not sure there is a gap in the market.

I have the Cyma Krinkov AKS-74U and a stick 11.1v LiPo (AK speck, 19mm dia?) will fit all the way through the wooden hand guard, I also owned the "Tactical" version and again the battery would slide into the front grip / gas tube area. Obvs the CM040 is a different beast but it might work. It currently runs a 7.4v lipo (120mm x 14mm x 18mm) that slides in easily (Ooh Matron!) and leaves plenty of room for the Gate NanoHard Mosfet. With a M115 spring, 16:1 gears, short stroked 3 teeth and a SHS High Torque motor it is a little monster Full auto isn't crazy fast but the semi auto trigger response is great (even with the horrible v3 trigger)

2nd hand Cyma CM041 highspeed stripped of the dark green / black camo paint. Re-shimmed gears, already short stroked 4 teeth on the sector gear so took 4 off the rack to prevent PEM. Wired in a Gate MERF mosfet to the rear (loads of room in the stock) new air nozzle (worst part of any Cyma!) and threw in a Maple Leaf hop rubber and nub. G&P front end with LED torch, I have some 2mm lexan coming to make a lens protector for the inevitable CQB shoot out 🤣 Shooting 340fps (+/- 2fps) on 0.20g and 19rps on a 7.4v I could run an 11.1v but I don't need 27rps!

I have booked Spartan woodland on the 18th as not fast enough to get anything else! Can't wait for StrikeForceCQB and UCAP VENDETTA to re-open later in the spring for some close up fun.

A lot like this! 1😁

Best way of filling any gas mag is in 1s bursts. Fill for 1sec, stop, wait a couple of seconds then give it another 1sec burst of gas. Keep doing this until full. Should be able to top off the mag that way! Give that a go and see how many shots you get from 12x 1sec fills

Do you mean run both motor wires out the "back" of the pistol grip thus avoiding the red wire crossing the pinion shaft (hehe he said shaft)? Might be enough room then for the 4 wires at the back of the gearbox and just the hot-glued out the way signal wires going to the front part.

I am planning to fit a Gate MERF mosfet to my Cyma MP-5 High Speed. The gun will be rear wired with the battery and mosfet in the fixed stock. Being a v2 gear box there isn't room for two 16AWG Silicone wires (motor) and 2 thin signal wired in the gearbox shell, especially around the motor entry point. I usually use these larger diameter wires to keep the resistance down, although this came stock with 18 AWG and an extender section to make it front wired...so I guess it was suitable? My plan is to use 18 AWG wire from a Deans connector at the back of the gear box to run the power wires to the motor and have room for the trigger contact signal wires. The MOSFET will sit in the stock up near the back of the receiver (I can always pop the stock off if i need to change settings / get at it) This will keep the thinner wires to a minimum. There will be a Deans connector and enough 16 AWG silicone wire from the other end of the MOSFET to the battery connector which I can grab from the open end of the stock pad. I am guessing the larger diameter wire will be better (less resistance) and there is loads of room in the stock so it seems silly not to? I had forgotten how much I hate v2s!

Sooo that was a cursed build! Gate MOSFET seems to be happy now, but the +ve "wire" on my 11.1v Li-Ion gave up because it was made from a thin piece of tin foil...and we all know what happens to that it you bend it 3 times FPS were still all over the place and misfeeding every other shot. Then, for no reason, the piston jammed and the piston head gouged a chunk out of the cylinder....WHISKY TANGO FOXTROT?!!! Luckily I popped an order into AK2M4 and had a new cylinder, piston head and 2x Cyma pistons waiting for me when I got home. I rebuilt it all stock (including the dodgy blue air nozzle) and it ran fine at 330fps, consistent (+/-4fps) and no misfeeds using the old 7.4v LiPo from my M4. I put in the SHS high torque motor and tested again. Quicker response and still feeding / good FPS. I then swapped out the gears for SHS 16:1 short stroked 2 teeth, the other Cyma piston (again -2 teeth) and the o-ring nozzle. M115 spring gave me 345fps on average hopped for 0.28g Super snappy in semi-auto, full auto is ok but I rarely use that. I think the feeding issue was due to the Strong Tappet Spring wasn't as strong as the stock one and 13:1 on 11.1v might have been taking the piss a bit 🤪 Safe to say I never want to take it apart again for at least 3 years (but if I do I will be damn quick at it!)

Please don't watch it but "SAS: Red Notice" had the blades kitted out in reject kit from the local airsoft site rentals bin 🤪 Shockingly bad film with some well known actors in it (who probably got new agents after that 💩show!)