CA or TM gearbox?

[genocide43110]

Alright I have what I believe to be a Classic Army gearbox but Im not sure. I was wondering if anyone who has a CA knows if they come stock with what looks to be 6mm copper bushings. Is that what comes standard in CA gearboxes? I was told that the gun is a stock CA but it also looks like it could be an upgraded TM MP5A3. If anyone could clarify this, that would be great Thanks.

[Dead_Pool]

my CA 33e didnt have copper bushings when i got it, so..... your gun is probobly upgraded. but your gun could be older, and those may be what they used at that time.

[genocide43110]

Oh yea. I forgot, the gearbox is a version 2. The gears also look like they are reinforced because I compared them to a TM set of gears and they look more heavy duty. The reason Im asking if its CA is because I am thinking about upgrading my gun with a PDI 170% and Im pretty sure Im set because all it says you need on the spring upgrading chart is reinforced gears. And also would I need a metal spring guide if I put in a 170%?

[Dead_Pool]

since your gear box is CA it should have a metal spring guide in it, it might or might not be able to handle the stress, getting an extra spring guide that is reinforced may be a good idea in case the stock one breaks. you also may want to get other reinforced parts for your gearbox, like a selector plate, tappet plate,ETC.

it could be an Airsoft Elite/ICS MP5 box, they come with brass bushings

CA comes stock with 6mm oily steel bushings, or 7mm bearings...never stock with brass.