This 177 caliber Colt M45 CQBP with blowback is a variation of the 1911 Rail Gun that's enlisted by the U.S. Marine Corps. The M45 CQBP (Close Quarter Battle Pistol) by Umarex has a drop-free airgun magazine with a capacity of 19 rounds. Steel BBs are recommended for flawless function. They travel out of the smooth, metal barrel at a speed of 400 feet per second. The left grip plate removes for the loading of a 12 gram CO2 capsule and the mainspring slides out of the bottom of the grip frame to reveal a hex key for piercing the CO2 cartridge. Like the M45 issued to Marines as well as the commercial version, the Umarex model features the flat, desert-tan-color on a metal slide. The frame is a polycarbonate substrate with black poly grips. You'll also notice the under-barrel Picatinny rail, 3-dot sights of which the rear is adjustable for windage, flat serrated mainspring with lanyard loop, enhanced Commander-style hammer, long, solid trigger, and ambidextrous safety lock.
Colt M45 CQBP Air Pistol Features:

• Powered by CO2 12gr cartridges
• 19-rd drop-free BB mag
• Single-action
• 3-dot sights
• Rear sight adjustable for windage
• Fixed front and rear sights
• Under-barrel Picatinny rail
• Frame constructed of polycarbonate substrate; Flat, desert tan Metal slide

Colt M45 CQBP Air Pistol Specifications:

• Caliber: .177" (4.5mm)
• Max Velocity: 400 fps
• Loudness: 4-Medium-High
• Barrel Length: 4.5"
• Overall Length: 8.75"
• Shot Capacity: 19
• Rear Sight: Fixed
• Scopeable: No
• Action: Semiautomatic
• Safety: Manual
• Powerplant: CO2
• Function: Repeater
• Trigger Action: Single-Action
• Weight: 1.75 lbs
• Front Sight: Blade