Upgraded internals

[Sacre]

So I am upgrading the internals of my Gun, got the G&G full metal V2 gearbox in my M4.

Modify Enhanced Cylinder Head - V2
Modify Aluminum Bearing Piston Head
PP SYSTEM Hard Piston
Mad Bull Gearbox Lubricant Set
Modify S130 AEG Upgrade Spring

The spring being a 130, meaning around 450 FPS, would this slow down my Rate of fire?

Being that the spring is harder to compress, i would figure the motor would slow down a bit, is this the case?

Also, are aluminum piston heads louder then their nylon comp brothers?

Think this is a good move for my M4?

Thanks!

[Kos-Mos]

130 spring is overkill.

You won't be allowed to play anywhere.
Your gun won't last at all. You will be lucky to get 10 000 rounds out of it.
Your mechbox will EXPLODE (literally).
Aluminium piston head do cause more noise, but they also damage the cylinder head and accelerate the destruction of the mechbox.

If you want a lower ROF, you just have to use a 8.4v battery instead of the 9.6v that you probably are using right now.

[Sacre]

Well I just contacted the place I ordered from and I'm trying to get the spring replaced with an m110 spring. I read about how many issues epeople receive with m130 and full autos etc lol. Also, my last piston head being nylon comp literally exploded and tore apart hence why I am getting a aluminum piston head and an aluminum cylinder head.

[Kos-Mos]

You where unlucky with your piston head.

I have been running a TM stock one for years now in a 400 fps rifle.

[Styrak]

What kind of battery are you going to be using with that?
Don't think that an 8.4v mini is going to cut it.

[m102404]

Take a plastic hammer and whack something with it...then take a metal hammer and whack the same thing with it.

Which does more damage? The metal one obviously transfers more shock/impact force to whatever it hits.

The force of the piston/piston head (i.e. the hammer) is hitting the cylinder head with every shot. The stiffer the spring, the harder the hit. That's ok for the cylinder head...since they're usually a block of sturdy material. However the only thing holding that blocky cylinder head in place is a thin walled portion of the mechbox shell.

Look up pictures for a "broken version 2 (aka V2) mechbox" and you'll see lots of examples of the front of the mechbox blown off.

A follow up issue to the front end blowing out is the possibility of further damage to the rest of your internals as things go out of alignment. Might not be bad...might be catastrophic.

Unless you're going into one or two very specific mechbox shells (i.e. pro-win...or CNC'd high grade)...ALL version 2 mechboxes can fail like that. There's only so much reinforcement a reinforced shell can do up at the front.

M100, M110...quality polycarbonate piston head, quality matching cylinder head...that's what has worked over and over for me.

And yes...the stiffer the spring, the slower the ROF...if everything else stays the same.

[Green]

Also....ditch that piston......I bought the same one awhile back and it didnt even last the day before the last tooth got shredded off.

I took my time removing the second tooth so it would engage properly with the sector gear and it just turned out being a total waste of time because the piston didnt last 30 rounds!

**mind you, I was using a pretty hot spring, but the for the price you paid for that piston, I would have stuck with modify....the modify piston was MUCH stronger

[Sacre]

Originally Posted by Styrak

What kind of battery are you going to be using with that?
Don't think that an 8.4v mini is going to cut it.

the battery is a 9.6 1400 mah batt

hmm, well I will install these pieces, being that the piston head is made from a lightweight metal it should help with the impact. But regardless the fact that metal doesn't absorb much will still be there.

It seems that these internals are better then my current being that my current cylinder head/piston head are a pale abs plastic. The piston body only had 1 metal tooth, thought the new one I was getting was a better choice.

This being said, is it still a decent upgrade? Considering what I have ATM?

Thanks for the replies fellas

[CDN_Stalker]

Originally Posted by Kos-Mos

Your gun won't last at all. You will be lucky to get 10 000 rounds out of it.

That's quite optimistic, I'd wager it'll go bust well below 1,000 rounds.

My TM MP5 cracked the mechbox when i had my PDI 150% spring in there, and it only shot 350fps, it died within two months of upgrading it.

[Styrak]

Originally Posted by Sacre

the battery is a 9.6 1400 mah batt

You might barely manage with that.

In other news, for reference I have been using a metal piston + piston head in my TM AUG with a stock TM cylinder head, at 380-400fps for thousands of rounds.
But that's a V3, not a V2.

[Sacre]

Originally Posted by Styrak

You might barely manage with that.

In other news, for reference I have been using a metal piston + piston head in my TM AUG with a stock TM cylinder head, at 380-400fps for thousands of rounds.
But that's a V3, not a V2.

well I did change the spring back to an m110 spring. So that batt should do well. Didn't keep the m130 lol, that's for sure

[Styrak]

Anything close to 400fps or above, a mini will have trouble with.
Or it won't last long, unless it's a very good quality battery.

[Sacre]

Originally Posted by Styrak

Anything close to 400fps or above, a mini will have trouble with.
Or it won't last long, unless it's a very good quality battery.

Atm she runs around 340-360fps, and fires at 22 RPM. Battery does its job, but she doesn't last -that- long.

[Crunchmeister]

I personally don't like mini batteries at all. Even the more expensive ones either don't last very long, or just can't provide the current required to operate my gun the way I want. 2/3A cells just don't cut it for me for 350+ fps guns.

I've made the switch to 4/5A cell battery packs and the difference is night and day. Most of my Armalites are loaded with a G&P crane stock or HK417-style stocks. 2000+ mAh 9.6V batteries work wonders in AEGs. They can deliver the current required to torque that motor over quickly (I tend to use high torque motors) for minimal trigger lag, and give me a consistent rate of fire.

But of course, my favourite are always sub-C cells. And whenever I have a gun that can use them, I do.

[Sacre]

So i upgraded my internals, and grabbed 4000 .25G BB's. Shes a mean one now, punching holes in nearly everything I shoot. The range and Accuracy are beautiful, very good grouping.

Time for pics! These are the internals of my current gun





This is the old piston head/cylinder



What do ya think?