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Airsoft electric gun with custom 3d printed gearbox. Uses TM-compatible parts for gearbox v3 and m-series mags. Barrel length 455 mm. For extra toughness of construction used 10x20 mm alluminium channels. Gearbox tested with 148 m/s (487fps) output and works well. Gun is open-source, files may be downloaded on Thingiverse: https://www.thingiverse.com/thing:2916390

I also had a cracking day yesterday at black ops Portishead , just me and my best bud , not particularly kit heavy just my Arthurian 416 and a TM recoil 74su , lots of good kills ,no real problem with ‘shouty’ players or non takers . Even shared a table with a guy never met before and we were all best mates by the end of the day ! So for me ? Just what I wanted (AND needed!) 👍

On the note of the green gas mod I used an angle grinder as I had one to hand however being zinc you could use a junior hacksaw or a pipe cutter I just did it in the quickest way possible. a valve key is so cheap you should get one anyway makes maintaining all your mags a breeze. As long as you have a set of Allen keys (a necessity for pretty much every Airsofter) a valve key (I recommend buying one) some masking tape and two biros and whatever cutting device you choose (you can pick up a Jnr. Hacksaw for about £2) i took my fill valves with tubes out of the mags, then I taped a ring about 10mm above the actual fill valve (the inner brass tube seen in the picture) use any thin long item as a depth marker put it down the tube till you hit the valve and put a wrap of tape on that point then take it out and place it beside your tube then move that point towards the end of the tube 10mm and you’ll have a good compromise between gas storage and initial shot consistency. then use the pen to mark that point. That’s your cut line, before you cut remove the valve itself to stop any swarf and filings getting in there. Then cut, by using the tape it should leave less of a sharp edge and then just rebuild your valves and refit to the mags and jobs done. when filling with gas I keep filling till it can’t take anymore, it does mean you’re stood there awhile filling mags however I get about 3 mags on a decent weather day to a fill of gas. So it’s worth the extra 10-15 seconds.

And it can work ‘in the flesh’ as it were as well , one of my longs looks like it has a very slight dip just in front of the receiver but when you check it against a straight edge there’s nothing there at all perfectly straight ! Weird as hell ! 😳

Very cool. Thanks for the info. I'm waiting on a Form3 at the mo. I'd love the XL but that will have to wait.

I use self-designed core-XY scheme printer. But this model adopted to usual 20x20cm heatbeds, so almost any modern printer may print this one. My first 3D-printed gun was made on Prusa Mendel and it was ok 👍

Nice work there. I like that a lot! What printer are you running?

It already has 455mm barrel, so making gun longer is not too necessary. Anyway, silencer may be installed to cover longer barrel, but threaded part for it can not be printed, only machined =( I'm designing my new project now, so I'll consider designing longer version too 👍

That is very very nice, I'm impressed 👍 Think I'd like to see a slightly longer dmr/sniper variant ?

And that's the right way to do it. Sadly though, guns are usually sold quoting fps with 0.2g, so you'd be looking at: Fully auto AEG <= 1.2J <= 360 fps with 0.2g Semi auto DMR = 1.68J = 426 fps with 0.2g Bolt action = 2.32J = 501 fps with 0.2g See http://www.asiaairsoft.com/index_topic.php?did=23&didpath=/23 Those are pretty standard limits for the UK, although most sites will quote in fps (with 0.2g) of 350 / 425[*] / 500 [*] DMR limits are all over the place from site to site, typically being anywhere from 400 to 500 fps / 1.5J to 2.31J

Just sharing some love for my MWS - took it to Airsoft Plantation today and what a pleasure - shooting people who have a shin stuck out from behind a tree at 70 meters whilst the group around them desperately try to engage me and literally seeing their BBs hit the ground 10 meters short of me and roll along the grass... awesome. Although 3 of the 5 mags I took out with me ran out of gas after around 10 rounds, I cannot believe the problems I’m having just getting these mags to accept gas. WIll try a 20 second plus fill next time and hopefully enough will get in there, or I’ll green gas mod them. But yeah, loooove this gun.

You chrono with the weight you use in game, hence why they use joules as that is a constant.

Over compensating much?? 🤣

New iron sights!