Danke Posted February 11, 2010 Report Share Posted February 11, 2010 3vi1-D4n said: I usually soak the hop rubber in dish washing detergent to get the oil out. Those KSC hop rubbers were originally designed for the Hardkick system, which required the constriction to hold the BBs in place while it activates the hardkick valve. It can be removed safely on a System 7 weapon while significantly improving long range accuracy. I bore'd mine away and my MP7 has never shot more consistent, comparable to even to my tightbored AEGs. I think it's time for a picture of that modification. Quote Link to post Share on other sites
3vi1-D4n Posted February 12, 2010 Report Share Posted February 12, 2010 Quote Link to post Share on other sites
galactica Posted February 12, 2010 Report Share Posted February 12, 2010 oh that's TERRIBLY interesting! Good man, that man! Quote Link to post Share on other sites
zentaurus Posted February 12, 2010 Report Share Posted February 12, 2010 verry nice indeed! so sweet and simple Quote Link to post Share on other sites
3vi1-D4n Posted February 12, 2010 Report Share Posted February 12, 2010 (edited) Best of all you can do it to the other KSC guns. I have done it to: G17 G26 G19 G23 SPP (non-hard kick) M9 system 7 SIG P226 system 7 And I have even done it on: WE M4 (different considerations) WE SCAR (different considerations) KWC Mini UZI (after I changed it from a PPS to a NPS) Same principles apply Maruis of course don't have his issue, until you use nine ball/KA hop rubbers and that really stuffs up its accuracy. Edited February 12, 2010 by 3vi1-D4n Quote Link to post Share on other sites
greg Posted February 12, 2010 Report Share Posted February 12, 2010 3vi1-D4n said: Best of all you can do it to the other KSC guns. I have done it to: G17 G26 G19 G23 SPP (non-hard kick) M9 system 7 SIG P226 system 7 And I have even done it on: WE M4 (different considerations) WE SCAR (different considerations) KWC Mini UZI (after I changed it from a PPS to a NPS) Same principles apply Does it effect fps? Greg. Quote Link to post Share on other sites
3vi1-D4n Posted February 12, 2010 Report Share Posted February 12, 2010 (edited) Nope it does not, particularly if you insert the grinding bit from the muzzle end. So long as you don't over enlarge the breech end of the hop rubber and affect the airseal between the nozzle and the hop rubber you are fine. Like I said, the Marui's don't have this constriction and they are still able to achieve a high FPS. Edited February 12, 2010 by 3vi1-D4n Quote Link to post Share on other sites
1st_shooter Posted February 12, 2010 Report Share Posted February 12, 2010 Anyone had this problem or checked there bolt recantly? I opened mine up after it started misfeading to find 2 screws sheared off im guessing this is due to the added stress of GG. I have ordered the new steel bolt. Quote Link to post Share on other sites
calbur20 Posted February 12, 2010 Report Share Posted February 12, 2010 (edited) 1st_shooter said: Anyone had this problem or checked there bolt recantly? I opened mine up after it started misfeading to find 2 screws sheared off im guessing this is due to the added stress of GG. I have ordered the new steel bolt. Is that a crack above where the screws used to be? Edited February 12, 2010 by calbur20 Quote Link to post Share on other sites
1st_shooter Posted February 12, 2010 Report Share Posted February 12, 2010 No just a scratch Quote Link to post Share on other sites
greg Posted February 12, 2010 Report Share Posted February 12, 2010 3vi1-D4n said: Nope it does not, particularly if you insert the grinding bit from the muzzle end. So long as you don't over enlarge the breech end of the hop rubber and affect the airseal between the nozzle and the hop rubber you are fine. Like I said, the Marui's don't have this constriction and they are still able to achieve a high FPS. Erm, I'm not experiencing 'hooking' or 'unpredictable hop at 25m'. In fact, I'm getting really good flat trajectory out to 50 or 60m, with 1 foot groups (using guarder hpm .28's, chrono around 320 fps with a .2). Which I think is pretty good. Can you quantify how much improvement is made by this mod. 1st_shooter said: Anyone had this problem or checked there bolt recantly? I opened mine up after it started misfeading to find 2 screws sheared off im guessing this is due to the added stress of GG. I have ordered the new steel bolt. I've seen one go, in a kwa. I was taking it apart & it just crumbled, no pressure at all. Greg. Quote Link to post Share on other sites
1st_shooter Posted February 12, 2010 Report Share Posted February 12, 2010 Perhaps i got a lemon then or just put stress on it when i installed the Upgraded Nozzle, On reflection i think i didnt tighten the screws fully because i didnt want the tiny allen key to slip or bore it out. But anyways WGC have confirmed and shipped my order already that i placed this morning so should be back in action in no time. Got the Npas too Quote Link to post Share on other sites
PanteraTigris Posted February 13, 2010 Report Share Posted February 13, 2010 (edited) Just got my Edgi 220mm/6.00 barrel and installed. So my asian version KWA is now firing at 397fps @ .28. So far accuracy wise is much better but can't really confirm yet coz a bit busy from work. Also did 3vi1-D4n hop conversion so Sunday next week will be able to solidly confirm everything. Edited February 13, 2010 by PanteraTigris Quote Link to post Share on other sites
kruck Posted February 13, 2010 Report Share Posted February 13, 2010 Good news, by judicious application of acetone it now appears to be working. Just emptied a couple of mags in full auto, and a couple of mags in single, no misfeeds all working well. Once I get some cheaper BBs to test with (I'm burning through these .28g, I have only 3000 left ), I'll dump a bunch of mags through it to verify. Quote Link to post Share on other sites
kruck Posted February 14, 2010 Report Share Posted February 14, 2010 Ahem, false alarm. Still not working. One of the rear body pins is now completely stuck too, can't disassemble at all now. I give in, it's going to a professional. Quote Link to post Share on other sites
aznriptide859 Posted February 14, 2010 Report Share Posted February 14, 2010 ^That, surprisingly, happened to me yesterday. One of the locking springs on the pin was turned at a very weird angle, so I had to use brute force and hammer the thing out. The pin still works, but it's pretty worn now I got a few KWA short mags from ASGI - gonna test them out once they get here Quote Link to post Share on other sites
kruck Posted February 14, 2010 Report Share Posted February 14, 2010 I tried hammering it out, pulling it out with pliers, I even tried to drill the locking spring out from the opening (didn't work). It's now stuck about half an inch out, not budging either way. I'm leaving it alone now, I'm just going to break something even more, as I said it's going to a professional now. I might even sell it it's pissing me off so much Quote Link to post Share on other sites
3vi1-D4n Posted February 14, 2010 Report Share Posted February 14, 2010 push it back in, and then sort out the spring, then push it back out. I find that you have to insert the pin in a certain way, else it stuffs the spring. Quote Link to post Share on other sites
kruck Posted February 14, 2010 Report Share Posted February 14, 2010 (edited) It's stuck, it won't budge either way now. And yea, I put it in in the wrong way. Edited February 14, 2010 by kruck Quote Link to post Share on other sites
greg Posted February 15, 2010 Report Share Posted February 15, 2010 PanteraTigris said: Just got my Edgi 220mm/6.00 barrel and installed. So my asian version KWA is now firing at 397fps @ .28. What was the temperature & how does that compare to the stock barrel? Greg. Quote Link to post Share on other sites
PanteraTigris Posted February 15, 2010 Report Share Posted February 15, 2010 greg said: What was the temperature & how does that compare to the stock barrel? Greg. Was not able to take the actual temp. But the magazine was definitely cold to the touch. On my stock barrel i was only clocking 340 @ .28 so this is definitely an up by 50fps. Quote Link to post Share on other sites
greg Posted February 15, 2010 Report Share Posted February 15, 2010 PanteraTigris said: Was not able to take the actual temp. But the magazine was definitely cold to the touch. On my stock barrel i was only clocking 340 @ .28 so this is definitely an up by 50fps. Great news. Thanks. Greg. Quote Link to post Share on other sites
Far-T Posted February 15, 2010 Report Share Posted February 15, 2010 Hi all, Just got a second hand, but basically new KSC. The original nozzle blewup stright away for the previous owner so he had it upgraded with the ready fighter nozzle. Had maybe 2-3 mags tops through it yesturday and just testing it now the nozzle springs decided to mangle themselves. No real biggy as I can get them replaced but ALL 4 allen bolts in the bolt have shear!!! All of them!! some very poor quality from KSC me thinks... Can anyone point me in the right direction for some more allen bolts? otherwise ive just spent £400 for a crappy paper weight!! FYI the upgrades were done by a retailer and there was only one nozzle spring in there... not happy right now Any help would be greatly appreciated Far-T Quote Link to post Share on other sites
galactica Posted February 16, 2010 Report Share Posted February 16, 2010 Well. Make sure you cut PROPER grooves in the RF nozzle's arms for the springs to sit in. My KSC's bolt has been opened up probably 6 or 7 times now, if not more, and the screws are OK. One of them in my KWA has broken. I wonder if your upgrade was done by someone who was a bit hamfisted? I wouldn't really trust a retailer more than an enthusiastic amateur, to be honest. Only go to a recommended gas airsmith if you don't have the skills and tools yourself. Quote Link to post Share on other sites
greg Posted February 16, 2010 Report Share Posted February 16, 2010 These bolts do seem to go, a bit randomly. I was doing Galactica's, KWA, when the bolt sheared & I put very little pressure on it, compared with the others, that came out without any problems. I believe Den Trinity & WGC are worth a try, they will probably have the springs too. Galactica is right, make sure you cut a proper groove in the spring retainers on the nozzle. Otherwise you will lose another spring. & you have not got an expensive weight. Sorting that lot is a 10 minute job that will cost less than £20, giving you one of the best locap guns in airsoft. Greg. Quote Link to post Share on other sites
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