Recommendations for an M4 alu/metal

[ozmike]

Hi folks,
I'm ozmike from Australia. Why am I here? Bucause our Australian forum has been hit with DoS attacks among other things and will be down for a while. I'm a newbie and I'm a little lost. So, I hope you guys won't mind spending a moment helping me with a couple of Q's relating to M4's.

I don't own anything yet, but I'm licensed in Aus to own rifles and I'm over 18, of course

I am looking at the G&P M4 RAS II mainly. It seems to be a well-made item with good performance in stock form. I also like the TM item but am not a hge fan of the plastic body (it's going to get thrown around the Australian bush). I have heard that it (G&P) needs a few adjustments before you use it, because of some factory.. err.. 'thingsthat aren't optimal' for lack of better words.

Can anybody elaborate on this or perhaps suggest a better path for me? A $1500AUD System is not happening, so don't even bother. But I can spend a little on upgrades, perhaps $500 ($439CAD) or so.

I have seen people pointing to these upgrade bits as good for moderately-high fps. Rate-of-fire is not as important, but accuracy is, so I don't want to go crazy with fps:

Angel Silent head kit
Systema Magnum (long)
MOSFET transistor and capacitors - I can whip up myself
M130 or M150 spring with spring guide


Am I on the right track?

Thanks in advance folks.

ozmike

[Dawnbringer]

Umm, I think that an m150 spring for an m4 is a little on the crazy fps side of things, the highest I see used around here is generally an m120 (about 400fps).

[Skruface]

An M150 is a great way to kill a Version 2 Mechbox. You'd not lose much velocity with an M130, but it would be much easier on the mechbox. I'd also swap the silent head set for a Bore Up cylinder set. You may even want to consider an aftermarket reinforced mechbox like Systema or Guarder.

If you're looking for accuracy above all, MOSFETS and Systema motors aren't going to do a thing for you. You want a tightbore barrel, a better hopup unit, a better hopup rubber. With the huge springs you're looking at, I'd also consider Torque-Up gears and an aftermarket piston, too.

In short, with the spring suggestions you made, if you're not willing to drop a pile of money on reinforcing other parts, your gun is going to wear itself out in short order. Remember, the Japanesese did not design these things to be upgraded, and you're asking to push the boundaries of engineering here.

Probably the easiest upgrade, if you're not skilled at repairing mechboxes, is the Systema Magnum motor & complete mechbox kit:
http://www.redwolfairsoft.com/redwol...l?prodID=21323

Add a Prometheus Perfect Metal Chamber hopup unit:
http://www.redwolfairsoft.com/redwol...l?prodID=21268

Add a Laylax Strike Chamber:
http://www.redwolfairsoft.com/redwol...l?prodID=16884

Get a good hopup rubber, like the Firefly Kurage "spicy", or the KM/Head RH65. Finish with the tightbore barrel of your choice.

However, afyer buying the gun and upgrades, you;re getting close to Systema PTW territory, price-wise. Maybe it's a better option?

[ILLusion]

I think a v2 gearbox can actually survive an M150 - with the help of the Angel silent head set, which is one of the softest head sets you can get. Tests have shown it to be exponentially much softer on the gearbox than even the Systema silent head set and miles softer than the next closest polycarbonate/POM head set.

But Skruface is right - easiest solution is to just grab the Systema M170 complete mechbox & magnum motor kit.

[ozmike]

Thanks a lot for the words guys. It sure does make a lot of sense to just buy a gearbox and drop it in. The links are great, thanks. I've read a review on the G&P and it wasn't so fantastic. It suggested the G&G as perhaps better built and more rigid. The hop-up units seem to be a bit of a problem that many are referring to. Inconsistent groupings seem to be what people are talking about. That'd be terrible, really.. Having BB's flying off in all directions. :banghead:

Thanks guys.
ozmike