a&k m249 upgrade

ultrafazer

can any one tell me where i can order an upgarde kit for the a&k m249

kdouglas

Moved to troubleshooting forum.

depends what you want to upgrade, the a&k 249 is fairly decent on it's own out of the box with a few minor tweaks

there's no kits as such available, but the gearbox will take any standard v2 gearbox parts

Blazher

ultrafazer wrote: »

can any one tell me where i can order an upgarde kit for the a&k m249

I may self ordered a M249 and started to look in to upgrading it, If you want the best from it then


1.) Bearings greatly improve the efficiency of your gearbox with a mild upgrade like this.

2.) I would pick a titanium toothed piston. However, it needs to be installed properly to work or it will eat your gears.

3.) Aluminum piston heads

4.) Guarder or Systema non bore-up cylinder set. The Guarder cylinder head is better than Systema's.

5.) Standard ratio gears with a straight cut. I would use Systema or Prometheus gears. This way you can use a bigger battery to get the ROF you want, but will still have nice and durable gears. Hi-Speed gears are only rated for 9,6V 1700mAh while with the standard ratio gears you can use a 12V pack without any problems.

kdouglas

the a&k 249 already has bearings installed in the gearbox, and they are non-standard ones so they are difficult to replace, they dont have the lip on them that most bearings do

titanium tooth piston? where did you find them?

regarding high speed gears, they are merely a different ratio which is designed to give you a higher rate of fire, the voltage of battery you use with it doesn't make a difference, they will just be faster than standard gears

with standard gears and a 12v pack, you will most definitely have problems, if you just stick a 12v battery onto a more or less stock gearbox, you'll rip your piston to shreds, even with a titanium/steel tooth piston, if the piston doesn't go, something else will, whatever is the weakest part (likely the gears)

Blazher

kdouglas wrote: »

the a&k 249 already has bearings installed in the gearbox, and they are non-standard ones so they are difficult to replace, they dont have the lip on them that most bearings do

titanium tooth piston? where did you find them?

regarding high speed gears, they are merely a different ratio which is designed to give you a higher rate of fire, the voltage of battery you use with it doesn't make a difference, they will just be faster than standard gears

with standard gears and a 12v pack, you will most definitely have problems, if you just stick a 12v battery onto a more or less stock gearbox, you'll rip your piston to shreds, even with a titanium/steel tooth piston, if the piston doesn't go, something else will, whatever is the weakest part (likely the gears)

If you really wanna push the Rof from the A&K m249 to around 30/35 RPM you need to dump the gearbox shell its self, The new CA m249 shell and hopup unit is what you want,

High Speed gears are recommended to use a max battery pack of 9.6v

I said standard ratio gears not standard gears. You will need to buy better gears, but with a standard ratio,

kdouglas

yea, when i said standard gears i meant standard ratio, regardless of brand

have you got your 249 running at those kind of speeds? i dont see the need for a new gearbox shell to be honest, they are fairly solid already?

the hopup unit in the 249 is grand once you apply the fix from FarEast's review on arnies. although im sure replacing it with a CA one wouldn't do any harm, it's not essential, it all depends on how much your willing to spend

still curious about that titanium tooth piston? have you got a link?

Blazher

I was speaking to the guy who did that review, he was the one who told me to get the CA Shell and hopup unit,

kdouglas

fair enough, i'm happy enough with the stock gearbox shell



have you got a link for that piston you mentioned?

Blazher

kdouglas wrote: »

fair enough, i'm happy enough with the stock gearbox shell



have you got a link for that piston you mentioned?

Something like this
There is a few types, All depends on what setup your going with, But from all the reading i have been doing and speaking to people they are the best for high ROF Setups

Spetzcong

The CA gearbox shell for the M249 comes with snazzy bearings, and a new trigger connector unit, I ended up using my CA gearbox shell in the end, although apart from being slightly lighter/stronger than the A&K there's not a huge difference between the two. If you're planning on doing a bit of work on it then the fixes you've mentioned should leave you with a very nice support AEG. I'd reccomend a new motor as the most important part of getting the most out of your M249, well apart from the mentioned Hopup and stuff.

kdouglas

Blazher wrote: »

Something like this
There is a few types, All depends on what setup your going with, But from all the reading i have been doing and speaking to people they are the best for high ROF Setups

never seem to find anywhere that has them in stock though....

i'm currently running an aluminium teflon coated piston in mine, does the job quiet well and rof is reasonably high

kdouglas

Spetzcong wrote: »

The CA gearbox shell for the M249 comes with snazzy bearings, and a new trigger connector unit

i've actually replaced the trigger switch in mine already, the original one burned out with a 9.6v large battery, you can get in maplin

Blazher

Spetzcong wrote: »

The CA gearbox shell for the M249 comes with snazzy bearings, and a new trigger connector unit, I ended up using my CA gearbox shell in the end, although apart from being slightly lighter/stronger than the A&K there's not a huge difference between the two. If you're planning on doing a bit of work on it then the fixes you've mentioned should leave you with a very nice support AEG. I'd reccomend a new motor as the most important part of getting the most out of your M249, well apart from the mentioned Hopup and stuff.

The only motor to get, is This

It comes in Long and Mid

kdouglas

Blazher wrote: »

The only motor to get, is This

It comes in Long and Mid

have one

you'll need a medium length motor for the 249

Blazher

kdouglas wrote: »

have one

you'll need a medium length motor for the 249

How much it cost you, Were did you get your one

kdouglas

got it from ehobbyasia.com, can't remember exactly how much they are, but around $80USD

Blazher

kdouglas wrote: »

got it from ehobbyasia.com, can't remember exactly how much they are, but around $80USD

ya thats the going rate for them, I am finding it hard to find a CA249 Shell and hopup unit ....

Cuddlesworth

Blazher wrote: »

ya thats the going rate for them, I am finding it hard to find a CA249 Shell and hopup unit ....

uncompany offer the hopup unit.

Beast ASI

The Deepfire pistons are excellent, and they're probably the only piston that has never stripped on me yet, and I've stripped them all, trust me . The Deepfire, slows down the ROF by about 50-100rpm though.

Recommended Pistons - G&P White (Probably the best all rounder), Angel Pistons or Deepfire Titanium's. Wouldn't recommend an aluminum piston in it though as your shell is probably slowly crumbling Aluminium piston heads also will put more stress on the gearbox, but I use them sometimes for the better noise they make.

The A&K M249 shell is fine for 30rps, no need to get the CA shell, although they sell it at Uncompany.com if you really want one.

I've got the CA hop with Prometheus bucking on it's way due to the way the nub works on the original hop-up, so that should be better.

I myself run an 11.1V lipo on Super High Speed gears (Phoenix, faster than normal high speeds) and It's holding up fine. It's really all to do with how you build it with the AOE, pickup e.t.c