They have the M&P Smith and Wesson reciever(standard one), a laser engraved Colt reciever and in the UK they have Olympic arms recievers.

There might be more but in my searches that's all I've ever seen.. If you have the standard one you could get in engraved with anything you want though...

your exactly right, I was surprise to see DPMS Panthers Arms trademarked receiver made for ICS. Its only made for law enforcements.

Sounds like you were testing him o.O

but yeah... My original question...

If you change the gears and the motor, will the angle change, and I will have to get a TM-compatible grip if I don't want to do any modding?

I think what they meant by the angle changing is just the angle of the bevel on the gears. If you change the motor to a TM compatible motor, the angle of the pinion gear on the motor won't match the angle of the stock ICS gears. Or vice versa..

I can't see the angle of the motor itself changing.

Just wanted to post up here, I am in the middle of swapping front ends on my ICS so I picked up an Element Delta ring and it threaded on with no modification. Perfect fit.

Not sure if ICS has been making changes to the things people were hating about the old models but I was sure happy I didn't have to mod the threads...

I upgraded my piston to this element 7-tooth piston (http://torontoairsoft.com/product.php?id_product=381) it worked well after few dry fires but then the fist tooth (plastic) got scraped and the piston won't move anymore because the gears wont reach the piston so I ended up putting back the stock piston.

LuckySeven, just get a prometheus or other high end piston and screw the 5 $ pistons.. had same problems when ibought cheap pistons IE: Deep Fire, element, APS. Just stick with the more expensive Pistons and youll be a happy camper .

I think, ICS's stock piston is better than this element 7-tooth piston.. It has a metal teeth too. And the second tooth was removed.