i bought a 510 mini 410 for my kids. its a riot to shoot and a joy to carry around. id imagine the chainsaw version is a blast too. how many rounds does that one hold? the 510 only does 2+1 and is a bit of bitch to load. the factory fixed mod choke was alot tighter than i imagined, which made me happy - 410 is a full choke only gun for me.