upgrading fps on tm p90?

irishairsoft1

hi all
just got a p90 today and want to upgrade t he fps on it
also want to get an extended barrel to hide under the suppressor and which won should i get?

T4RGET

irishairsoft1 wrote: »

hi all
just got a p90 today and want to upgrade t he fps on it
also want to get an extended barrel to hide under the suppressor and which won should i get?

is it new? can't imagine it needs to be upgraded if it's new mate.
What's it coming in at at the moment? as for the suppressor it really depends on the length of the inner barrel you use and what kind of suppressor you're looking for.

Gatling

Bar a madbull tighbore barrel I'd leave it alone ,
As stock the p90 will outrange full length aegs ,
Personally I wouldn't extend the stock inner barrel either ,
If its band new its should be almost perfect out of the box ,
If it's 2nd hand I'd clean the barrel and replace the hop up rubber ,

DeBurca

What is the current FPS, TM AEGs typically shoot at 280ish
As for fitting a longer barrel then you will need to change the cylinder to match the new length
The standard length inner barrel used in a P90 is 249mm, I have fitted both a 363mm (M4 length) and a 420mm (Sig 556 length) tight bore barrels to a P90

The disadvantage to doing this is that the front of the P90 is then very susceptible to breaking as the silencer used to cover the barrel projects a long way forward and the front of the receiver is not very strong
I have always used a forward rail system to protect the silencer from banging into trees/walls etc and besides I think it looks good

irishairsoft1

thanks for the replies. i got it second hand but it had only been plinked a few times. and the supressor is the standard tm suppressor you get with the p90. and the fps is about 280. and how much would a cylinder changes cost if i were to get longer barrel?

T4RGET

irishairsoft1 wrote: »

thanks for the replies. i got it second hand but it had only been plinked a few times. and the supressor is the standard tm suppressor you get with the p90. and the fps is about 280. and how much would a cylinder changes cost if i were to get longer barrel?

I'm not trying to be funny or anything but honestly i wouldn't even bother opening it. It's a TM. There's a standard joke that if you open up a TM it releases the magic pixie dust or whatever it is they put in their AEG's.
I wouldn't bother upgrading it for the sake of it. I'd be happier with bragging about a TM than a TM which has been gutted and had it's internals replaced

Kashkai

This was my P90 up to yesterday and it shot perfectly, even at "just" 280fps. It's a Marui Emmet, it'll last for years if you look after it. While she's now yours to do what you want with, I'd recommend leaving her be and just enjoy having the best P90 model on the market that will hit a euro coin at 50 feet (I've done it!). She's accurate as hell which is more important than upping the fps by a relatively small increment.

Ask yourself if you really want to have to take her apart, fit a new cylinder, barrel etc for a small improvement in performance, that may long term, affect the reliability of the gun? Spend the cash you were going to use on the upgrades on a new scope, laser, flashlight for the triple rails. It'll look great especially with a red laser scanning the area looking for a target!

Up to you mate, but I'd leave her as is.

DeBurca

As others have said it may be best to leave it alone and it should give you years of good use
However if you feel that you must increase the FPS then you will need to replace the main spring with something like an M90 which should give you 310-315fps
If you want a longer barrel you will need to change the cylinder to match the barrel length, a replacement cylinder will cost between €10 to €20 depending on type and brand

Please be advised that fitting a stronger spring will increase the wear rate of the moving parts within the gearbox especially the bearings which are nylon and are unique to TM as 2 are oval and the other 4 are the more normal round type

irishairsoft1

ok thanks for the advice all.i think ill leave it stock if it would wear the parts down

Eo1n8wrd

One upgrade i made to my one was to install a tanio koba inner barrel, it really did make a noticable difference to its range and accuracy, no doubt there are a few nay-sayers out there :-D

Gatling

Eo1n8wrd wrote: »

One upgrade i made to my one was to install a tanio koba inner barrel, it really did make a noticable difference to its range and accuracy, no doubt there are a few nay-sayers out there :-D

A standard decent tight bore and hop rubber would do the same ,

The fact twist barrels were designed for single shot device's ie bolt actions and pistols ,

They do work but I've not seen one subjectively tested against say a standard barrel and hop , madbull black python with a upgraded rubber and a Tk Twist,and a another high quality barrel

Eo1n8wrd

Gatling wrote: »

A standard decent tight bore and hop rubber would do the same ,

The fact twist barrels were designed for single shot device's ie bolt actions and pistols ,

They do work but I've not seen one subjectively tested against say a standard barrel and hop , madbull black python with a upgraded rubber and a Tk Twist,and a another high quality barrel

it works full auto on mine, the idea is that it cushions each bb through the barrel, not proper rifling as such.
I doubt there would be any massive difference between types of barrels but thats one upgrade i made to mine and i notice a very positive difference from stock.

Gatling

Eo1n8wrd wrote: »

it works full auto on mine, the idea is that it cushions each bb through the barrel, not proper rifling as such.

But there known to be at there best when used in a vsr,or other bolt action or pistol due in part to the stable airflow ,vs the so called violent airflow of full auto and fps variance ,
But as I said earlier there a consensus they work just as good in aegs

Always wondered why they were not clones enmass or fitted as standard barrels

Eo1n8wrd

they must be a right devil to produce, might be enough to turn off the clone market when they can just cut up lengths of pipe for other types.
i think maybe it works well in the p-90 because its full auto on such a short barrel each ones out before theres a huge amount of bbs in the barrel behind it, i wouldn't swop it out though!!!