emp3ror86 Posted January 22, 2013 Author Report Share Posted January 22, 2013 I think it is only the incosistency of their manufacturing process and not a design change on purpose. But I am quite happy with these products nevertheless, only one needs some modification from three. That is much more than what I expected from Guarder. I also got their houp bucking inbound. Quote Link to post Share on other sites
emp3ror86 Posted March 11, 2013 Author Report Share Posted March 11, 2013 Much time passed since the last update as I am working on articles for hungarian sites. But things do happen which I am going to write about soon. What to expect: - Experience with RA-tech blue and Guarder hopup rubber. - I also got Ra-Tech improved hopup kit inbound which will hopefully solve hopup and accuracy issues I am also going to write about soon. - Magazines and bolt catch issues and fixes. - KSC receiver issue. And a queston that has been bothering me for weeks: WHERE IS THE RAINIER ARMS RAPTOR CHARGING HANDLE FOR KSC/KWA, PTS??? Quote Link to post Share on other sites
emp3ror86 Posted March 18, 2013 Author Report Share Posted March 18, 2013 HOP-UP buckings The most important part of every airsoft gun without question. And sadly the weakest part of the - especially old gen - KSC ARs and KWA LM4s. It is arguable as some guy managed to make both of them work. But generally not even the new hopup system was as good as a stock TM GBB unit in their pistols without modifications. I used both systems for about half a year and tried many sort of modifications. Sometimes things seemed to work but it was never consistent solution. The new design which was introduced with the KSC M4 CQB-R was a step into the right direction. But unfortunately the weak spot remained the same. The instrument that pushes down the bucking. Its material was too weak and it was also too thin. Maybe Ra-Tech now helped this great GBB platform one big step closer to be the best one on the market? I think we will find out soon. Personally I am going to test it this weekend. Fortunately I already tried a few aftermarket bucking available for the new generation hopup system in the past months. I am going to talk about these products: EVOII Hop-Up Set for KSC/KWA Glock series, Guarder and Ra-Tech buckings. Guarder bucking Note: it is a used one in the picture. Probably a 1000 BB or so went through it. It is still in good condition. Compared to the stock bucking. You can see that Guarder enlarged that part which actually hits the BB. Compared to the stock one its material is less soft. Which means it will not wear out as fast as the stock unit. Speaking of accuracy test I can only wirte about subjective impressions as I could not make a proper test yet. Our experience is that In cold the stock bucking performed slightly better. Cold means somewhere between 0 and 5 degrees. RA-Tech bucking This is the least soft bucking. And in cold (around 0 and 5 degrees) it became so stiff the BB could not go through under it. It basically made my gun useless at that game. It might work in the warm but I am pretty sure I am never going to install it again. EVO II Hop-Up SET I was waiting literally for months to this item. Sadly I have to wait a few days with the field test but I have high hopes. Contents of the package. It is assembled so it is really a drop in kit for Glock users. Only the tensioner arm and the collar is made of steel. The latter one is the same as the stock one. These ones seem to be pretty identical, too. The point of the entire kit. A strong steel tensioner. I was about to have it made locally because I had thought Ra-Tech would never release it. I am glad they did. The bucking. Seems to be pretty interesting. Sadly I could not test it yet. If the new tensioner works, I am going to borrow all of my pals' guns, get to a shooting range and make a real test between the buckings. Quote Link to post Share on other sites
emp3ror86 Posted March 19, 2013 Author Report Share Posted March 19, 2013 Forgot to add that in softness the Maple Leaf bucking is somewhere between the Guarder and Ra-tech one. Quote Link to post Share on other sites
uscmCorps Posted March 19, 2013 Report Share Posted March 19, 2013 Looking forward to seeing the tests. Quote Link to post Share on other sites
emp3ror86 Posted March 29, 2013 Author Report Share Posted March 29, 2013 (edited) The new hopup kit seems to work. Now I just need to get some heavier BBs to make the test. Bolt carrier polishing Smooth cycling is essential in the GBB world, I think that is something out of question. The less smooth a GBB gun cycles the worse the gas consumption is. Fortunately the KSC/KWA platform is really well made in that term. From the 3 KSCs and 1 KWA I know only one had cycling issues. As an improvement, the bolt carrier and the inside of the receiver can be polished. Smoother cycling provides much better gas consumption. It might mean only a few more shots in a warm day, but the colder the weather gets, the more it counts. It might make the difference between a working and a non working gun on a cold winter day. I know that from first hand experience. So I polished my KSC steel bolt carrier. It was surprisingly easy and the black color turned into gray. I like the new look much better. Polished one is above, stock one is below. The inside of the bolt carrier where the nozzle cycles can also be polished. Result is much smooter cycling. Stock LM4 bolt carrier. Polished LM4 bolt carrier. Edited March 29, 2013 by emp3ror86 Quote Link to post Share on other sites
Grimmese Posted March 29, 2013 Report Share Posted March 29, 2013 awesome! Now you have to fix my hop up problem anyway i looking forward to how corodable is the steel bcg with polished finish Quote Link to post Share on other sites
emp3ror86 Posted March 29, 2013 Author Report Share Posted March 29, 2013 I suppose RA-TECH should do that fix. I'll look into it, patience. Yes, now that steel bolt carrier might require more care and proper oiling. Not like I wouldn't already spend more time next to my work bench than actually playing... (I can hear grammar nazis crying over your post btw. ) Quote Link to post Share on other sites
Grimmese Posted March 29, 2013 Report Share Posted March 29, 2013 Check my signature, it solves anything. Muhahahaaaa Quote Link to post Share on other sites
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