The Colt Delta Elite is a great second chance gun. It is part of the HPA Series, Heavy Powerful Accurate Series. This is a realistic replica. The Colt Delta Elite uses a Hop-Up system. The "Hop-Up" system creates friction on the BB as it is shot through the barrel. This puts a spin on the BB that helps it to fight gravity, wind resistance, and air friction allowing it to be shot farther. This is a Spring Airsoft Pistol, which means it's powered by a spring and must be cocked for each shot. It's fast, clean, inexpensive and easily maintained; it requires no gas or batteries to operate. If you're looking for a fun, reliable Airsoft Pistol that'll look great and perform even better, you've come to the right place. Colt Delta Elite Full size officially trademarked silver Colt Delta Elite 45 airsoft handgun. This spring action handgun shoots 245 fps w/ .20g bb. 295 fps with a .12g bb. Features a metal barrel which makes this handgun replica feel and look very realistic.