The Daisy Model 5501 CO₂ Blowback Pistol is a semi-automatic BB air pistol designed for recreational target shooting and training-style practice. It fires .177-caliber steel BBs at up to 430 feet per second using a 12-gram CO₂ cartridge and a 15-shot removable magazine. The pistol features a blowback slide action that cycles with each shot to simulate the movement of a semi-automatic platform. Its construction includes a metal frame with molded grips, a smoothbore steel barrel, and fixed open sights with a blade-and-ramp front sight for aiming. A manual trigger block safety supports controlled handling, and the pistol measures approximately 6.8 inches in overall length while weighing about 1.1 pounds.