Need some tech help guys

[aweeleprechan]

So, in the effort to repair the stripped gears in my M14, I've encountered some new problems. I decided that since I was opening up the gearbox, I might as well upgrade it a bit. So I ordered pretty much all new parts, including a new spring (thought I was buying a spring of equal strength to the one in it, but I guess I went from a m120 to a m130), new piston/piston head, spring guide, and a new motor.

I installed all of it just fine, except while testing it to make sure it was all working fine, I managed to break off the first metal tooth of the new piston. Fine, whatever, it's identical to the stock one, so I put the stock piston back into the gun. The thing shoots fine for about 50 rounds or so, then strips the first engagement tooth (last tooth) on the piston. Awesome. So I order a much nicer piston than the original one (at least it was listed as a much nicer piston), an SHS blue piston, which had very good reviews online at various places, and was recommended on a number of websites.

This piston lasted maybe 5 triggers pulls...hadn't even made it back into the gun yet, was just testing airseal, before the first engagement tooth and a significant chuck of the surrounding plastic failed pretty castatrophically (no damage to anything else I can see, but a pretty big chunk of the piston broke off).

I'm pretty much at my wits end here...can anyone recommend a piston that can stand up to an m130 (heck i'll even put the stock 120 back in) and an ICS Turbo 3000 motor turning a set of Prometheus hard gears?

[XGeneral_ZodX]

When a gun Brakes..Buy a new one.. By the time you fix the Gun most of the time you have already spent what it would have cost to get a whole new one or buy a replacement gear box.

[cutlasslord]

There's lotsa pistons that can take it. And by the way, there's nothing wrong with upgrading your gun. No stock gun can hold a candle to a well upgraded one. I'd love to see a stock gbb 1911 that can compare to my Kimber. They don't exist! There's no reason to throw out a gun that just needs a $20 part. Fix the gun right when it breaks. You don't have to throw down a fortune to put decent parts in your gun. I go all out on mine personally but its not required to go drop $1k in a gun to make it great!

Aside from that, if you want a good piston, look into something like one of these AIM pistons. They're cheap, light, and great quality especially for the money spent. They have metal teeth and can really take a beating plus are light for more high rate of fire applications as well as being able to withstand stronger springs. I use one in my custom G&G M14 EBR with no issues.

www.evike.com/product_info.php?products_id=30044

[aweeleprechan]

Well I'm only about $100 away from an Echo 1 XCR, but I'd rather have an operational M14 as well

Cutlasslord I'll see about getting one of those AIM pistons, but I'm also looking at a Lonex rebrand

www.airsoftgi.com/product_info.php?products_id=6994 by Bravo, or a G&G Nano www.airsoftgi.com/product_info.php?products_id=1431 both of which are ridiculously well reviewed, and were recommended on a couple other forums. I guess I could get them all...never know when you might need a piston in short order.

[cutlasslord]

I actually have used them both. The G&G is very good until you exceed an average setup. You will struggle to break one in a "normal" gun. I've actually destroyed one and it was the most catastrophic failure in a gun I've ever seen. It literally cost me a whole G&G M14. Basically the stock, receiver, hopup and barrel were all that was left. That piston is incredibly tough but NEVER put a PDI spring behind it. Matter of fact, don't put a PDI spring in anything that isn't a Tokyo Marui Springer...

The Bravo one isn't as good as people say. Bravo is rebranded Lonex (which it appears you know already). Lonex is very good but that piston is dumb. It needs full length metal teeth. I have a lot of Lonex parts in my EBR but prefer to stick to Modify as much as is feasible. Polycarb pistons will wear the teeth out quicker. Replaceable metal teeth are where the strength of the piston needs to lie. Polycarbonate is durable for the body of the piston but doesn't take gear wear well unless its Lexan like the old STAR ones. The AIM is very good for its price and will be extremely durable. I actually chose it over the G&G Nano for my newest (and budgetless) G&G M14 EBR build not because of cost but because I like it better and have had better experience. I actually took my AIM out of my AK and put it in my EBR build. The AK had been running a Madbull M120 on a set of modular Modify speed gears pulled by a Systema Turbo on a 4000 mah 11.1 Lipo and it had no discernible wear at all. My AK was running over 45 rounds/sec. I actually welded a battery to it, melted wire insulation, burnt the trigger contacts, and broke two magazines because of the fire rate and never had a gearbox failure in it. The AIM is light and durable. Can't ask for any more.

[aweeleprechan]

Sounds like I'm going for the AIM then. Thanks for the info.