gunner-airsoft Posted April 21, 2005 Report Share Posted April 21, 2005 I am lucky enough to get a used SVD in HK, the gun have very poor accuray and no hop up, make it impossible to use in game. I am trying to make a new system for that, including and a KM 650mm tight bore with hop up, and a gas blow back system carried from KSC gbb pistols. here is some pics Link to post Share on other sites
bullzebub Posted April 21, 2005 Report Share Posted April 21, 2005 oooh! more pics! Link to post Share on other sites
gunner-airsoft Posted April 21, 2005 Author Report Share Posted April 21, 2005 yes, I will post more pics tomorrow. I want to install a whole M1 carbine mechanish into it, make it works like a bolt action. but.........this is a semi auto in real world, and KM is releasing an air cocking soon. so such mod will be no value. currently I am working at the trigger mechanism, which is the most difficult part in the project. I use a M1 carbine hammer for it, but the sear is totally unusable on this gun. so I need to make my own from a piece of steel. and the hammer is too big also, my friend is helping me too trim it down, and the disconnector, firing pin locker need to be made also........... oooh! more pics! <{POST_SNAPBACK}> Link to post Share on other sites
Lance Jackass Posted April 21, 2005 Report Share Posted April 21, 2005 Awsome! Ive looked into doing that for an L1A1 SLR, looks like your making an awsome job of it! Are the blow back parts all metal? And is that huge spring the recoil rod? Link to post Share on other sites
Antagon Posted April 21, 2005 Report Share Posted April 21, 2005 NO! Don't change the gas system!! I suggest you ask Shoei for some replacement hop up's for their guns, they're the best I've seen. Link to post Share on other sites
BakaBox Posted April 21, 2005 Report Share Posted April 21, 2005 Too bad it doesn't work too well, bacause it's a really nice (but expensive) rifle. What about an Escort system or something inside it? Might be a little tough to fit though... Edit: That huge metal bolt on the picture must give some serious recoil, so keep it if you manage to install a hop op unit and a tight bore barrel. Link to post Share on other sites
Antagon Posted April 21, 2005 Report Share Posted April 21, 2005 ESCORT designed the internals Link to post Share on other sites
BakaBox Posted April 21, 2005 Report Share Posted April 21, 2005 I guess durability and recoil isn't a problem then. Link to post Share on other sites
Antagon Posted April 21, 2005 Report Share Posted April 21, 2005 I guess durability and recoil isn't a problem then. <{POST_SNAPBACK}> Durability is only a problem when you hook up an external tank and start cranking up the PSI, brass can only hold so long Thats when you need to remachine the internal parts from steel. Link to post Share on other sites
gunner-airsoft Posted April 21, 2005 Author Report Share Posted April 21, 2005 the gas system is one of the worst thing in this gun, basically it is the same mechanism use on MGC first blowback glock 17. it dont have a hammer, when you pull the trigger, it will move a metal block to push the valve. it means when you pull it harder, the more powerful shot, you pull it light.........it will be weak. this kind of mechanism is not good for a sniper rifle. I never have a chance to open a shoei yet.........can you found any pics about the shoei hop up??? I have a lot of GnP hop-up buckling and made a chamber for it already ( you can see in the pics, its made of brass) NO! Don't change the gas system!! I suggest you ask Shoei for some replacement hop up's for their guns, they're the best I've seen. <{POST_SNAPBACK}> Link to post Share on other sites
Antagon Posted April 21, 2005 Report Share Posted April 21, 2005 Thats the only downfall of the escort system, no hammer, so the trigger pull gets harder as the pressure increases Although I was able to effectively make long range shots with my old M24, which had a trigger pull of 30+ pounds because of the upgrades. Link to post Share on other sites
gunner-airsoft Posted April 21, 2005 Author Report Share Posted April 21, 2005 30+ lb....... thats why I use a hammer. but I still afraid I cant find a suitable hammer spring for my project..... Thats the only downfall of the escort system, no hammer, so the trigger pull gets harder as the pressure increases Although I was able to effectively make long range shots with my old M24, which had a trigger pull of 30+ pounds because of the upgrades. <{POST_SNAPBACK}> Link to post Share on other sites
hhsohn Posted April 21, 2005 Report Share Posted April 21, 2005 I haven't seen a MGC GBB, but the Escort mechanism shouldn't be anything like it. If I understand the mechanism correctly, the shooting pressure is somewhat regulated by the recoil spring, mass of the bolt, and the input pressure. Which is to say it's somewhat less sensitive to trigger pressure than those more direct valve found in Maruzen M1100 and JAC GBB (those of my first hand knowledge). Go find SniperX at classicairsoft.net. He has a SVD that he fine-tuned, and he knows Escort mechanism quite well. Link to post Share on other sites
Antagon Posted April 22, 2005 Report Share Posted April 22, 2005 I haven't seen a MGC GBB, but the Escort mechanism shouldn't be anything like it. If I understand the mechanism correctly, the shooting pressure is somewhat regulated by the recoil spring, mass of the bolt, and the input pressure. Which is to say it's somewhat less sensitive to trigger pressure than those more direct valve found in Maruzen M1100 and JAC GBB (those of my first hand knowledge). Go find SniperX at classicairsoft.net. He has a SVD that he fine-tuned, and he knows Escort mechanism quite well. <{POST_SNAPBACK}> Well, it's nearly a direct valve system like the M870. The trigger directly connects to a paddle, which sits on the valves button, the more input pressure. The harder it is to press the harder the button is to press, the harder the trigger pull. But it appears he already modded some of his stuff, look at the mag, looks like a pistol mag shoved in there. Link to post Share on other sites
gunner-airsoft Posted April 22, 2005 Author Report Share Posted April 22, 2005 It is a 8mm M1 carbine mag. but I removed the bb feeding tube. because I want it 6mm and I will make a 6mm feeding. Well, it's nearly a direct valve system like the M870. The trigger directly connects to a paddle, which sits on the valves button, the more input pressure. The harder it is to press the harder the button is to press, the harder the trigger pull. But it appears he already modded some of his stuff, look at the mag, looks like a pistol mag shoved in there. <{POST_SNAPBACK}> Link to post Share on other sites
gunner-airsoft Posted April 22, 2005 Author Report Share Posted April 22, 2005 yes they should be all metal....... brass and aluiminum and steel. and the recoil rod is a screw taken from AEG M16A2 butt stock. Awsome! Ive looked into doing that for an L1A1 SLR, looks like your making an awsome job of it! Are the blow back parts all metal? And is that huge spring the recoil rod? <{POST_SNAPBACK}> Link to post Share on other sites
Catchv22 Posted April 22, 2005 Report Share Posted April 22, 2005 Keep us updated on how this goes. I'm very interested in how this turns out. Link to post Share on other sites
gunner-airsoft Posted April 22, 2005 Author Report Share Posted April 22, 2005 I just fit in the 50% complete trigger assembly inside the gun. my friend trimmed the hammer for me, and I put it into the assemble also. tomorrow I will be working on the sear. Link to post Share on other sites
hound Posted August 26, 2005 Report Share Posted August 26, 2005 sorry to drag up an old thread but just wondering how this project is going as i love dragunovs and it would be interesting to see the results. cheers hound Link to post Share on other sites
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