www.replicaairguns.com Type: Blowback BB Pistol. Manufacturer: Made and Distributed by ASG. Model: CZ 75 SP-01 Shadow. Materials: Mostly all Metal. Weight: 2.37 pounds (1076 grams). Barrel: 4.5 inches (114mm) metal non-rifled. Total Length: 8.26 inch (210mm). Propulsion: 1 x Co2. Action: Semi auto blowback, single & double action trigger. Ammunition Type: 4.5mm steel BB's. Ammunition Capacity: 17 round drop out full size metal magazine. FPS: Claimed 312. I am pretty sure that the ASG CZ 75 SP-01 Shadow Blowback CO2 BB Pistol started out life as a 6mm Airsoft Pistol, and then this version was simply converted over to shoot 4.5mm Steel BB’s by more than likely swapping out the barrel, perhaps changing the nozzle and modifying the magazine to allow for 4.5mm BB’s over the 6mm Airsoft BB’s. And that is OK with me as I really like how Full Blowback Airsoft Pistols recreate that realistic shooting experience. The downside to all of this is a bit of a perforce hit since Full Blowback Airsoft Pistols use up a lot of CO2 to create that full heavy blowback experience. You also lose some power along the way. I am fine with that but some people may not be. Overall I really like the ASG CZ 75 SP-01 Shadow Blowback CO2 BB Pistol. It is high quality and looks awesome. Now I just need to find out how it shoots :) Read my full written review here: www.replicaairguns.com/posts/2024/4/11/asg-cz-75-sp-01-shadow-blowback-co2-bb-pistol-table-top-review Buy the ASG CZ 75 SP-01 Shadow Blowback CO2 BB Pistol in Canada: https://www.replicaairguns.ca/asg-cz-75-sp-01-shadow-blowback-bb-pistol Buy the ASG CZ 75 SP-01 Shadow Blowback CO2 BB Pistol in the US: https://www.replicaairguns.us/asg-cz-75-sp-01-shadow-blowback-bb-pistol