Uses its claw as a gun (A literal pistol shrimp):

Beta Remoraid revealing that it was based on a gun:

Gigantamax Blastoise sporting a comical amount of guns:

Mega Blastoise:

Beta Octillary showing it is based on a tank:

Gigantamax Intellion uses its tail as a snipers roost and has a sniper rifle:

Dragapult is a Stealth Bomber: