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bkbigd82

AGM M4A1 Carbine Gearbox... Lipo Ready?

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So this is my first post and hello fellow Airsoft gurus! I am just wondering a few things about my gearbox and some problems/concerns I have. This is my actual gun I purchased in case you want to check out the specs. http://www.airsoftmegastore.com/NEW_2010_A...e_p/agm-031.htm

 

Regardless I recently tore my gun down and discovered a few little nasty surprises. Well, as I am sure most of you know, AGM's "full metal body" is metal..... pot metal at best... So while disassembling my gun I noticed that my stock tube was rather loose. When I took it off I came upon a snapped backside to my lower receiver. Luckily I work at a facility which supplies some ridiculously strong epoxy so I patched/sanded/filed that problem right up.

 

The reason I tore my gun completely down is because I was having a problem with it not wanting to go into semi auto properly. When in semi auto if I pulled the trigger at regular strength it would fire fully automatic but when I really gave it a good pull it would shoot semi auto...mostly. Sound like a selector plate problem or maybe something with the trigger?

 

 

Now on to the gearbox.... Well when I opened the gearbox I discovered a rather large smearing of grease throughout. Yeah.... there was a lot... So I cleaned that all up and am now just wondering what exactly is this gearbox made up of. Does anyone happen to know the brand of the gears/piston/piston head... etc.? Also I am wondering if anyone knows what size bushings are really used in this thing? I would imagine 6mm but I really don't want to guess on that.

 

Anyway, I have ordered a King Arms selector plate, a systema air nozzle, some madbull gear and piston grease, a guarder steel pinion gear and some systema shims. Im looking to eventually have a good all around M4 with high FPS and decent ROF. I know I am kinda asking a lot of questions in this one post but it is basically all related on the fact that I want to know if the steps I am taking are good or....not so much :a-cool:

Edited by TacticallyEncroached

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No, you cant run a good lipo on your m4. Your gears are XYT, which with propper shimming will last you. The stock piston is cheap polycarb which will strip.

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any gearbox is "lipo ready" But how long will it last???

 

A stock AGM wont handle a lipo very long till you have problems. You would need new gears (guarders are good) a better piston...etc...

 

 

I have opened a new AGM m16...it has decent internals, but a LIPO will cause you problems if you run the gun stock.

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Well I doubt I will be going lithium anytime soon then. All I need to do now is figure out what kind of motor is in this thing. Its has no markings on it at all so I have no way to tell who manufactured it. :a-skeptical:

its just your average chinese motor. just a chaoli motor without markings

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Every GUN is lipo ready, but not all PEOPLE are lipo ready. They can be very dangerous, and you need to do a lot of research to be able to run them properly. You could run a 7.4v lipo fine. It'll give the exact same ROF (give or take an extra round or two a second), just with better trigger response.

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It depends on the C rating of the battery. The higher the C, the higher the ROF.

Not exactly so, if your motor draws 15 amps, and you have 2 different batteries-one with a 20c discharge and the other with 30c discharge they will both produce the same ROF. A motor will never take more amps than what its designed for. Volts changes the ROF. A 11.1 V will give a higher ROF than a 7.4V lipo.

Edited by locprecision

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