Crazy Yeti Blasters - This is the Nerf Modulus ECS-10, a battery powered rifle class blaster in the Modulus series. This blaster has a semi automatic, manual trigger and vertical flywheel firing
Fully complete Nexus pro with integrated chronobarrel. Here are some better pictures of the blaster and battery location and door as requested. : r/Nerf
Nerf Modulus EXS-10 review - hands on with the most customisable Nerf blaster yet | Expert Reviews