akio Posted March 29, 2006 Report Share Posted March 29, 2006 I see gunner dropped his import price by $30.... $170 was way to much for it to begin with, but if you're in the states, they will hit retailers here in about 2 weeks. <{POST_SNAPBACK}> They're already starting to show up on eBay. Metal Gearbox Cyma cm 028-s With shipping, they're going for around $115. I've already ordered mine. Link to post Share on other sites
The End Posted March 30, 2006 Report Share Posted March 30, 2006 be sure to post a review, but if thats the organge tip and not a dust cover on the tip.... Link to post Share on other sites
xda2jojo Posted March 30, 2006 Report Share Posted March 30, 2006 a nice nearly TM Ak47 Clone ...worth almost 4,800 php (93.6503 USD) here in Davao City,Philippines... jojo Link to post Share on other sites
borkz Posted March 31, 2006 Report Share Posted March 31, 2006 can anyone help me. i want to repair my gear box, coz one of the gear has broked away. but a dunno how to open this think :'( Link to post Share on other sites
akio Posted March 31, 2006 Report Share Posted March 31, 2006 can anyone help me. i want to repair my gear box, coz one of the gear has broked away. but a dunno how to open this think :'( <{POST_SNAPBACK}> If that's the Cyma cm.028s, you should probably check the forums over at Filipino Airsoft. The gun's been available there for a while, seems to be pretty popular, and they've probably got more experience with it. Or maybe one of the Marui AK47 owners here could help. Link to post Share on other sites
Shroomalistic Posted March 31, 2006 Report Share Posted March 31, 2006 You dont need to remover that part to get the gear box out. You need to unscrew the four screws on the bottom front of the receiver and pull the front end fowards, unscrew the grip and remover it, pop the cap off the selector switch and remove it, take the single screw out of the battery tray and remove it, then pull the gear box out carefully. Link to post Share on other sites
Horrorpop Posted April 1, 2006 Report Share Posted April 1, 2006 IS it possible to upgrade to 350 fps?? Link to post Share on other sites
DarkLite Posted April 1, 2006 Report Share Posted April 1, 2006 IS it possible to upgrade to 350 fps?? <{POST_SNAPBACK}> Yes. A PDI 150% and a new piston+piston head and maybe a new cylinder head should do it. Also metal bushings and a new shim job. Link to post Share on other sites
Horrorpop Posted April 1, 2006 Report Share Posted April 1, 2006 im thinkng that the CYMA AK47S is the same as THIS AK47s By MATRIX would this affect the above mentioned upgrade?? Link to post Share on other sites
gunner-airsoft Posted April 1, 2006 Author Report Share Posted April 1, 2006 borkz, You dont need to remove that part anyway. listen what Shroomalistic says. Horrorpop, All I can say is POSSIBLE....but it dont worth to upgrade on this gun. and please don`t discuss upgrade over 328fps forum limit. and seems its not the same thing as MATRIX..... the matrix have a metal mag and CYMA has a plastic mag..... anyone have a MATRIX AK can you post some pics here??? can anyone help me. i want to repair my gear box, coz one of the gear has broked away. but a dunno how to open this think :'( <{POST_SNAPBACK}> Link to post Share on other sites
GruntGuy Posted April 1, 2006 Report Share Posted April 1, 2006 All I can say is POSSIBLE....but it dont worth to upgrade on this gun. and please don`t discuss upgrade over 328fps forum limit. <{POST_SNAPBACK}> are you saying that we're not allowed to discuss upgrades that increase the fps to above 328 on this forum?? why's that?? Link to post Share on other sites
crackisbad Posted April 1, 2006 Report Share Posted April 1, 2006 are you saying that we're not allowed to discuss upgrades that increase the fps to above 328 on this forum?? why's that?? <{POST_SNAPBACK}> You're kidding, right? And this coming from someone that lives in the UK Airsoft Muzzle Velocity discussion ("the 1 Joule Rule") Discussion of Airsoft replicas that shoot BBs with more than 1 Joule of muzzle energy is not tolerated. While the 1 Joule limit is not a legal limit defined by UK law, it is legally considered that any Airsoft replica at this limit or below, cannot cause a penetrative injury to a person. This means that the law considers any replica shooting above this limit as either a grey area, or a weapon. As we want this sport / hobby to remain safe, discussions of power levels (or equipment that will enable a replica to exceed this power level) is not allowed. We understand that in many countries, velocities of 400 feet per second and more are legal, but this is a British web site, with a British owner and we have set this limit for discussion as it helps to ensure that all members stay on the right side of British law. Link to post Share on other sites
Nightbaron Posted April 2, 2006 Report Share Posted April 2, 2006 Well, Already got this thing since late february... Shoot great, with bit upgrades (In HK you can order a full sets of upgrades for this CYMA 028S... the box got everything springs, piston etc etc etc all ya need is read the instruction manual on how to replace the stock one) and it will go to 380 - 400 with 0.2.... Oh and just get their high grades metal magazine... The stock one sucks, Or you could just use TM mags. Link to post Share on other sites
Nightbaron Posted April 2, 2006 Report Share Posted April 2, 2006 Well, Already got this thing since late february... Shoot great, with bit upgrades (In HK you can order a full sets of upgrades for this CYMA 028S... the box got everything springs, piston etc etc etc all ya need is read the instruction manual on how to replace the stock one) and it will go to 380 - 400 with 0.2.... Oh and just get their high grades metal magazine... The stock one sucks, Or you could just use TM mags. Link to post Share on other sites
zala Posted April 2, 2006 Report Share Posted April 2, 2006 it is pleasure sew our 028s in uk web station. Link to post Share on other sites
GruntGuy Posted April 2, 2006 Report Share Posted April 2, 2006 You're kidding, right? And this coming from someone that lives in the UK Airsoft Muzzle Velocity discussion ("the 1 Joule Rule") Discussion of Airsoft replicas that shoot BBs with more than 1 Joule of muzzle energy is not tolerated. While the 1 Joule limit is not a legal limit defined by UK law, it is legally considered that any Airsoft replica at this limit or below, cannot cause a penetrative injury to a person. This means that the law considers any replica shooting above this limit as either a grey area, or a weapon. As we want this sport / hobby to remain safe, discussions of power levels (or equipment that will enable a replica to exceed this power level) is not allowed. We understand that in many countries, velocities of 400 feet per second and more are legal, but this is a British web site, with a British owner and we have set this limit for discussion as it helps to ensure that all members stay on the right side of British law. <{POST_SNAPBACK}> ahh yeah i thought so.. sorry, i'm still a n00b! haha. although, i'm not entirely from the UK. i'm actually from HK but i'm over here in the UK for my education. i'm a good friend of darklite's *cough*penis*cough*. i surmised it would be something to do with the 1j limit, but i couldn't quite remember the formula to work it out.. so how much energy does a 328fps shot have? Link to post Share on other sites
DarkLite Posted April 2, 2006 Report Share Posted April 2, 2006 <{POST_SNAPBACK}> ahh yeah i thought so.. sorry, i'm still a n00b! haha. although, i'm not entirely from the UK. i'm actually from HK but i'm over here in the UK for my education. i'm a good friend of darklite's *cough*penis*cough*. i surmised it would be something to do with the 1j limit, but i couldn't quite remember the formula to work it out.. so how much energy does a 328fps shot have? <{POST_SNAPBACK}> If using a 0.2g bb, 1J exact. The formula is Kinetic Energy (of the bb) = 0.5 x Mass x Velocity squared. Hence, with a 0.2g bb: 1 = 0.5 x (0.0002) x (v) squared v squared = 1 / 0.0001 v = sqrt [ 10,000 ] v = 100 Standard Index, so 100ms-1. 3.28 feet to a metre, so 328fps. Tada. That'll be one eBiscuit, please. Link to post Share on other sites
DarkLite Posted April 2, 2006 Report Share Posted April 2, 2006 it is pleasure sew our 028s in uk web station. <{POST_SNAPBACK}> Are you from CYMA? Link to post Share on other sites
GruntGuy Posted April 2, 2006 Report Share Posted April 2, 2006 If using a 0.2g bb, 1J exact. The formula is Kinetic Energy (of the bb) = 0.5 x Mass x Velocity squared. Hence, with a 0.2g bb: 1 = 0.5 x (0.0002) x (v) squared v squared = 1 / 0.0001 v = sqrt [ 10,000 ] v = 100 Standard Index, so 100ms-1. 3.28 feet to a metre, so 328fps. Tada. That'll be one eBiscuit, please. <{POST_SNAPBACK}> Link to post Share on other sites
BULL DRAGOON Posted April 2, 2006 Report Share Posted April 2, 2006 a cyma with a metal gearbox?? first the MP5 now this? what are they doing over there?? What else beside the ###### mag and mini battery does it come with in the box? Does anyone know where we can get this in the US? <{POST_SNAPBACK}> Link to post Share on other sites
BULL DRAGOON Posted April 2, 2006 Report Share Posted April 2, 2006 a cyma with a metal gearbox?? first the MP5 now this? what are they doing over there?? What else beside the ###### mag and mini battery does it come with in the box? Does anyone know where we can get this in the US? <{POST_SNAPBACK}> Link to post Share on other sites
GruntGuy Posted April 2, 2006 Report Share Posted April 2, 2006 <{POST_SNAPBACK}> ehmmm.. is it just me, or is that pic broken?^ Link to post Share on other sites
BULL DRAGOON Posted April 2, 2006 Report Share Posted April 2, 2006 ehmmm.. is it just me, or is that pic broken?^ <{POST_SNAPBACK}> Link to post Share on other sites
Destro Posted April 3, 2006 Report Share Posted April 3, 2006 Anyone found this for sale in the US yet? I've been looking (and waiting very impatiently) since this thread was started with no luck... Cheers! ~Kevin Link to post Share on other sites
Almighty Posted April 3, 2006 Report Share Posted April 3, 2006 im thinkng that the CYMA AK47S is the same as THIS AK47s By MATRIX would this affect the above mentioned upgrade?? <{POST_SNAPBACK}> Judging by the picture posted in the link.. yes its the same. If there any discrepancy regarding the magazines, I just would attribute that to a repackaging by the distributor/seller. As far as upgradability is concerned.. no difference. Link to post Share on other sites
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