PTW & CTW Gearboxes

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PTW & CTW Gearboxes

Postby Chewy416 on Mon Mar 13, 2017 1:32 pm

Hi guys,

Can't find a thread on this so hopefully it's an easy question to answer.

How can you tell if a gearbox is a PTW or CTW one please?
I bought what was sold to be a PTW (with certain non-PTW bits, but CTW never mentioned once) and I've noticed recently that there is a blue light inside.

From research, a blue light is only present with CTW Electronics - so this is leading me to believe the gun may not be fully what it was sold to be.

So, how can I tell if a gearbox is PTW or CTW?

~ I can never forget that no matter how much it hurts, how dark it gets, or how far you fall, you are never out of the fight. ~
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Re: PTW & CTW Gearboxes

Postby The Operative on Sat May 06, 2017 9:50 am

Blue Light is also used by etiny electronics. Which are OK with me my main gun runs with that, had to replace only a Mosfet in a couple of years.
The Operative
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Re: PTW & CTW Gearboxes

Postby thundercactus on Sun May 07, 2017 5:26 am

systema gearbox has KUMI on the side.
Open the gearbox, if the planetary shafts have flats on them to align with the gear cap, it's systema. If they're round, it's a CTW.
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