bt-16, nitro tank (3000 psi, 48 ci), remote line, gravity hopper, and bottom line kit
1. nitro tank
2. bottom line kit
Rate of fire, length of shot, easy to clean
The weight of the gun
When i first started out the day my remote had problems, but i later went and got that fixed; it was like i was really drafted into a war. The shot were not all flying like i wanted them to, but most were accurate as possible (no sights remember). but the gun held up when i needed her the most, i have read where people have said that the ball popped in the hopper; didn't happen with me. I love Bertha
If you are a woods-ball player (i hate being called that), then this is the gun to get, i just want to get a trigger, so i can blast on full auto like everybody else, but just not has many upgrades as other, but me and Bertha still take them out.