King Arms M1A1 Thompson full metal/wood
 

I just picked this up and she fires super... loving it. Just wondering whats the best battery to run in her ? I have a 8.4 1500 right now which was included with purchase at shop. Also any good internal upgrades ?

Thanx

In my experience a fairly big 7.4 lipo .(2200mah) It will bring up the rate of fire a bit without going crazy

yup

I love the 7.4s. Great longevity, and RoF, without putting too much strain on your mechanisms, or running through an entire magazine in two seconds.

^ what they said. 7.4v 1200mAh seems to work best with my setup.

I mosfet mine out of the box and put in a 11.1V just to see what would happen. It broke the stock piston head half way through the day. lol

So, yea 7.4V would be a good starting point for stock gun. ;)