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CatgutViolin

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Everything posted by CatgutViolin

  1. CatgutViolin

    Glock Picture Thread

    $259 US and currently only sold by Flux Defense, directly through their website. It looks like they currently don't ship outside the US, unfortunately.
  2. CatgutViolin

    WE/Cybergun M1A1 Thompson Submachine Gun

    Spitballing here, but on real open-bolt submachine guns, you get the first issue if the sear return spring is too light (so a hard pull 'slaps' it down and the gun is able to cycle twice before it resets), and you can get the second issue if the disconnector is designed to be tripped by pulling the trigger farther than it takes to fire (full-auto is then achieved by blocking the trigger from going far enough to engage the sear- this is how my WE M712 is designed, so I wouldn't be surprised if this uses the same). If you increase the tension on the sear, it will typically fix both issues. Assuming what I described above is what's going on.
  3. CatgutViolin

    Glock Picture Thread

    It was not a walk in the park, to say the least. I significantly carved out the area behind the slide, shortened/smoothed the beavertail on the pistol itself, enlarged the crosspin hole (hence the machine screw), and removed some material where it wraps around the sides of the grip. I'm guessing most, possibly all of that could have been avoided if I had just used a Gen 4 frame as it was designed for, rather than the Gen 3 frame I had, but by the time I realized what I was getting into it was too late to turn back.
  4. CatgutViolin

    Glock Picture Thread

    Flux Defense brace bodged with a Dremel to fit on a WE G17 (gen 3).
  5. CatgutViolin

    WE Desert Eagle (Licensed by Cybergun)

    I'd love to do that, but Aluminum Black doesn't produce that fire-blued steel look, it just turns pure black, then scrapes off if you stare at it too hard. DuraBlue (a spray product) is an option, but I'm not too impressed by the results I've seen.
  6. CatgutViolin

    WE Desert Eagle (Licensed by Cybergun)

    Yeah, I have a pair that I got for my Dan Wesson that took some fitment. I have a set of rasps so that's not too big a deal. These are the ones I ordered. I'm mostly just interested to see if being designed for the airsoft gun makes for better fitment than the generic wood grips. Guess I'll find out. I like having options in either case. I will say that the Alumagrips feel the best so far, because they're significantly thinner than the stock, Hogue, or wood grips. Being thinner makes the gun a lot more comfortable to hold, even without any checkering.
  7. CatgutViolin

    WE Desert Eagle (Licensed by Cybergun)

    Got some pics. Turns out the wood grips I ordered from KSD Grips arrived today too. Fitting the Alumagrips only required filing down the tabs on the inside that secure to the frame, so that the magazine doesn't contact them. This took about ten minutes with a steel file. Fitting the wood grips was significantly more involved, and required reprofiling the inner 'step' that fits them to the frame. Also, there's an issue I've noticed on both grips- they don't fit flush on the back, demonstrating a small gap. I suspect the aluminum frame of the WE is slightly thicker than the steel frame of the real thing, causing the grips to stand a little bit farther off than they should. On the Alumagrips this isn't a problem, because of the aforementioned tabs holding the grips to the frame, but on the wood grips tightening the screw caused the grips to bow outwards. I've solved this for now with adding spacers to control the width- it's not optimal, but it might be the best I can do short of having some grips custom-made. These wood grips also appear to be unfinished, so I'm going to rub some Tung oil into them and see if I can get a bit more luster. I also have the KimPOI Biohazard Lightning Hawk grips on the way as well, because I enjoy wasting money on pistol dress-up, so we'll see how those compare.
  8. CatgutViolin

    WE Desert Eagle (Licensed by Cybergun)

    Well, unless you start swapping parts in the nozzle, the mechanics of firing and recoil aren't affected. The gun will dump gas out the nozzle until the rocket valve seals, then it'll start to recoil. If the gun is overvolumed, as most gas pistols are, then you'll get higher FPS with a longer barrel, but that's it- Marui doesn't do that simply because they have to abide by Japanese legal limits. The main reason most pistols don't have easily-swapped barrel length is that the tilting action on most short-recoil pistols means that extra weight on the barrel can start to mess with things. But the Desert Eagle has a fixed barrel, so that's not a problem. I'm kind of surprised there aren't more aftermarket external bits for the WE already, actually. In related news, I was able to get real-steel Alumagrips to fit on my WE with minor modification. No more creaky, wobbly plastic when the grips are now solid slabs of aluminum torqued to the frame. I'll post some pictures in a couple of hours.
  9. CatgutViolin

    WE Desert Eagle (Licensed by Cybergun)

    The Weaver cuts did need to be significantly deepened to fit, but otherwise it seems to clamp fine.
  10. CatgutViolin

    WE Desert Eagle (Licensed by Cybergun)

    After testing over the last week, I've learned some things that I don't think I've seen documented. -The hop chamber design is considerably better than many of WE's prior GBB pistols, being more or less a GBBR hop. This is a big difference from the WE M712 I have, where I eventually replaced the hop adjustment with a vertical grub screw because the stock design just didn't work well. -Because the hop chamber is well-built, I replaced the barrel with a Crazy Jet 6.04mm (138mm length) and the bucking with a Maple Leaf Autobot, 60-degree, and am getting what I consider very impressive results. The hop-up is easy to adjust, and I'm able to get it to just a very slight overhop to maximize range. Most notably, though, it's surprisingly consistent for a GBB. This could be a sniper handgun for sure, and the barrel + bucking combo is only $38 from WGC, so it's not a huge investment for considerably better performance. -The magazine catch isn't profiled very well. I was having to give magazines a good slap to get them past the mag catch, and I noticed it was starting to deform the metal of the magazines. I removed the magazine catch, used a file to put in a consistent 45-degree angle, and polished it with 300-grit sandpaper. Now mag insertion is much smoother. Only other thing to note is that I have purchased an Ultradot sight, which mounts with Weaver scope rings, so I will report back on just how much modification is needed to get them onto the shallow cutouts on the WE barrel.
  11. CatgutViolin

    Marui M870 Fix and Tuning Thread

    Still up for me- where does this link take you?
  12. CatgutViolin

    One-Day Flamethrower Build

    So, what I intended as a weekend project only took about six hours. Many of you have probably seen videos on making a cheap BB gun out of a soda bottle, since they're all over Youtube, but while this design is marginally more complex to build, it delivers significantly better performance in both rate of fire and muzzle velocity. Pictured is a 3D printed 'vortex block', the core of a vortex strafer design. I 3D printed it for convenience- it's just a rectangular block with three holes drilled in it. The bottom hole serves as an air inlet, where a push fitting for an air line is routed. The very large hole is the vortex chamber, where the air (theoretically) swirls around, forming a vortex which sucks in BBs and spits them out the third hole (in the upper right of the vortex chamber) through a barrel. I say 'theoretically' since it's not clear whether it actually forms a vortex or not, but it works in either case. I mounted the vortex block in an iron 1-1/4" coupler, and installed a 12" segment of AEG barrel. I also glued some protective side plates on either side, covering the upper half of the vortex chamber, which prevents BBs from jamming up the chamber when the strafer is full. The front shows the plastic plate used to seal the front of the vortex block, against a PVC collar inserted into the coupler. This section has to be airtight and able to withstand pressure for the strafer to work. So, now the actual strafer chamber is attached- it's just a 12" aluminum 1-1/4" Sch40 pipe nipple with a hole drilled in it for a 1/8 NPT fitting. This hole aligns with the air inlet hole on the vortex block, so a fitting for an air line can go through both and deliver air directly into the vortex chamber. In order to do that, some sort of valve is needed. My teammate used a simple valve screwed directly into the vortex block, but I wanted pistol grip ergonomics, so I used a pressure washer handle with reducer fittings on either end to fit standard paintball/airsoft macroline. To keep the handle attached, I drilled through two of the screw holes so that they went all the way through the handle, then used a piece of spring steel cut to shape to wrap around the tubing and secure the handle in place. I couldn't put any holes through the tubing itself because it needs to maintain pressure and I can't interfere with the BBs and follower, so figuring out how to secure the handle was probably the most difficult part of the build. Now properly mounted and connected. At this point, after just three hours of work, with the addition of an endcap to secure the rear of the chamber this would be a fully functional strafer- just hook up the air line to an HPA source, fill the chamber with BBs, screw on an endcap, and go. But I wanted it to actually resemble a flamethrower, and be a little more reliable, so work continued. The cartridge ignition system on the US M2 and M7 flamethrower wands is distinctive, so I decided to emulate that look for a forend. I screwed a piece of 1-1/2" PVC onto the threads of a second 1-1/4" pipe nipple, and drilled a first ventilation hole. Using a highly advanced engineering technique, I cut a strip of paper to the circumference of the tubing, folded it in half a couple of times, and then marked the folds with lines. I then taped this to the tubing to serve as a guide.
  13. CatgutViolin

    One-Day Flamethrower Build

    Man, did I really build this thing a year ago? Time flies. Anyways, I did a video with Novritsch back in October, and it looks like he just uploaded it. Figured I'd post here to keep it all in one place.
  14. CatgutViolin

    WE Desert Eagle (Licensed by Cybergun)

    Got my Weagle. Hop-up likes to hook left, so I'll need to take that apart and have a look. I wanted to reduce mine to sub-330fps, so I did a bit of testing with reducing the diameter of the nozzle (like how the FG-Airsoft restrictor disks work), but found that the backpressure it produced was increasing the cycle time and reducing gas efficiency. Reducing the diameter of the floating valve instead, via a styrene tube insert, produced the same FPS reduction but with normal cycling. That wasn't quite enough to get it consistently below 330, so I shimmed the floating valve as well, and that sufficiently reduced it. Then, I discovered that K-Y Airsoft sells both a default nozzle set and a low-power nozzle set. Some videos show the Weagle shooting around 320 stock, so I'm assuming that's this low-power OEM nozzle set. So, I've ordered the OEM low-power nozzle, and will report back on what effect it has. I like how straightforward the takedown is on this gun, so hopefully I'll be able to easily swap between a low-powered nozzle set for CQB and a high-powered one for field. Also, does anyone know what the Silver finish actually is? I thought it was electroplated, but the pebbled finish and uneven application in some places suggests a spray, yet the acetone I used to remove stickers didn't touch it.
  15. CatgutViolin

    WE Desert Eagle (Licensed by Cybergun)

    So I've got a WE Desert Eagle of my own on the way, and now I've gotten really, really confused about the finishes. Evike sells them in Black, Chrome, and Silver versions (see here). The Chrome is the same price as the Black. The Silver is more expensive than the other two. Am I to understand that the Chrome is a painted finish that is now being retired, and the more expensive Silver is electroplated? All of the non-US retailers I've looked at have only listed Black and Silver, and reading through this thread I've seen people refer to Chrome and Silver seemingly interchangeably. I ordered the Silver one and have no idea what's actually going to show up on Wednesday. Anyways, while I'm here, I was wondering if you or anyone else has any recommendations on must-do modifications. I saw your earlier posts about widening the hop window and polishing the chamfer, so I was going to start with those- anything else that should be done right off the bat?
  16. CatgutViolin

    APS CAM870 Impressions

    Here's a guide on how I load my shells now- haven't seen anyone else use this method, but it seems to make a noticeable difference:
  17. CatgutViolin

    Shotgun Picture Thread

    Points to hitmanNo2, it is, in fact, just a bog-standard Elcan C79 without the rubber cover. I came up with the idea when trying to make the Elcan look a little less out of place when strapped to my PKM, and it's surprising how unrecognizable the optic becomes.
  18. CatgutViolin

    APS CAM870 Impressions

    By the way, I messaged APS asking what it would take to switch from the MkI to the MkIII system. They emailed me back: To which I asked if there was any difference in performance, since their release photo showed a pretty high FPS, and got this reply: So there you have it- it's the MkI resurrected, without as much real-steel compatibility.
  19. CatgutViolin

    APS CAM870 Impressions

    For the, like, three people who might be tempted to attempt such a project: The APS CAM870 fits in a Bullpup Unlimited conversion kit with minimal modification. Did it in about two hours, no power tools, just some trimming of plastic on the conversion plate (the piece that bolts to the rear of the receiver) and a bit of shimming to get it to attach at the correct angle. This image is with a 24" barrel, but the overall length is just 33", and it's perfectly balanced over the pistol grip. The pump action is a little rougher and the trigger is garbage, but hey, it works.
  20. CatgutViolin

    Shotgun Picture Thread

    After kicking around the idea for the better part of three years, I finally bit the bullet and ordered a Remington 870 bullpup conversion kit from Bullpup Unlimited. Surprisingly, my APS CAM870 was almost a drop-in fit, requiring just a different stock bolt, removal of some plastic on a conversion piece, and a shim to adjust a particular angle of fitment. It now has a 24" barrel, 8+1 capacity, and just 33" overall length (same as an M4), while adding less than a pound to the gun's weight, which is now perfectly balanced over the pistol grip. Oh, and an Elcan, because why not. Might not be very useful, but it sure fits the look, doesn't it? I do have a C-More on the way that will be a little more practical.
  21. CatgutViolin

    One-Day Flamethrower Build

    Months later, I finally have some gameplay footage of the thing in action, along with the two designs of my teammates.
  22. I suppose this isn't really an ongoing project, having finally finished the bunch of R&D that went into it, but maybe this can be of use to some of you. Historically most CO2 airsoft revolvers shot way too hot for field use. This has been changing recently with the advent of 'low-power' versions, but as far as I'm concerned, if I'm going to carry a gun sufficiently finicky to require reloading individual shells, I'm going to make those shells as effective as possible. So: Multi-BB 'ratshot' or shotgun shells for Wingun revolvers have been around a few years. Normally they're plastic 3D prints, expensive from stores like Shapeways, and come in bright plastic colors. I think that's all kind of lame, so I set about improving an earlier effort to build some proper brass shells that do the same job. Here's a tutorial video on the end result- dirt-cheap shells (I've built 100 for about $50) that hold up to six BBs apiece and are compatible in most any gun that will accept Wingun shells. And the result of an evening of assembling shells while playing videogames:
  23. CatgutViolin

    AI Mike40

    Surprisingly, the demo video actually demonstrates the 'correct' use when the player sweeps it across the guys in the tower. Aim at a distant target, pull the trigger, wave it around. They're not each getting plugged with 100+ BBs. Sure, they're getting hit with more than one so I guess you can call it overkill, but it's not like a regular moscart is any different in that regard. I'm also just going to throw out that unless they've edited the design since the video, the 'third of a second' rate of fire claim is nonsense. Check the timestamps and you can clearly see that it's taking nearly a full second to discharge. That makes it virtually identical in both rate of fire and muzzle velocity to a strafer, which has plenty of legitimate use.
  24. CatgutViolin

    AI Mike40

    Some of us don't have to imagine. Some of us have experienced comparable equipment in use, and don't have to engage in armchair speculation. Who here is talking about deliberately using it to overshoot? Do you also ask why people what's enjoyable about slugging others with honest-to-god explosives (TAG rounds), permanently damaging their hearing (BFGs), exposing them to lung-destroying chemicals (literally any smoke grenade on the market), inflicting comparable amounts of overshooting in a different pattern (bog-standard moscarts), or simply making other players bleed (high-FPS guns within MED)? Nobody's denying the potential for abuse, but nobody here's advocating using it for deliberate overshooting either. And frankly, citing safety concerns to single out this product seems downright disingenuous. P3 Strafers have a higher joules-per-second output than this, with much higher elastic deformation per-hit, and they've been extensively tested with Z87.1 eyewear with no apparent problems. A moscart at close range objectively causes greater deformation thanks to simultaneous impact. You're right, eyepro is rated for a single impact- that means you're following ANSI guidelines and discarding your lenses every time they suffer a single hit, right? I don't have any particular interest in this product, but this is getting ridiculous. If your local community is so toxic and unpoliced by field staff that banning anything abusable is the only way to stop someone from being a grade-A *wheelbarrow*, then by all means ban it. If your field's semi-only then it probably shouldn't be allowed to begin with. The rest of us can use it responsibly, along with the myriad of other products (see above list) that represent a material hazard and potential source of abuse. Maybe when the public gets their hands on it people will see it for themselves that a stream of low-velocity BBs will not, in fact, rend their flesh, destroy their eyepro, burn their patch, foreclose on their house, and steal candy from orphans.
  25. CatgutViolin

    AI Mike40

    I've found that pretty much any system that rapidly dumps liquid CO2 (liquid is the key, CO2 GBB mags don't do this since they siphon gaseous CO2) experiences power creep, be it 40mms, Goblins, or APS shotgun shells. Since they're filled with liquid CO2, they're all effectively massively overvolumed and gain substantial power with heavier BBs. Systems that use liquid propane will also do it, but to a much more limited extent than with CO2.
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