A lot to list:
SSG24 has m170 spring from the original m150
SSP1 has a short stroke with cut out slide as well as a full auto kit that is not installed at the moment.
SSG24 shoots .46g bb's at around 450-500fps
WARNING!! DO NOT SHOOT SOMEONE THAT IS CLOSE ENOUGH TO HIT WITH A PISTOL!
The rifle is very powerful and was denied entry in a few fields unless the spring was swapped back to stock. For instance Ambush Paintball and Airsoft in PA wont pass unless with the stock spring.
Please check your field limits
I prefer you to pick up but contact me first before buying
Also i can deliver if you are decently close by. I dont mind driving an hour.