Umarex Glock 17 Gen 5 MOS CO2 Blowback BB Pistol Field Test Review

www.ReplicaAirguns.com Type: Blowback CO2 BB Pistol. Manufacturer: Distributed by Umarex. Model: Glock 17 Gen 5 MOS. Materials: Metal & Polymer. Weight: 1.5 pounds (683 grams). Total Length: 7.95 inches (20.2cm). Barrel: Smooth bore 4 inch barrel (10cm). Propulsion: CO2 x 1. Action: Semi auto blowback, double action only trigger. Ammunition Type: 4.5mm steel BB's. Ammunition Capacity: 18 round drop out full size metal magazine. FPS: Claimed 370. I was very pleased with the performance of the Umarex Glock 17 Gen 5 MOS CO2 Blowback BB Pistol. It had a lot more blowback action than I was expecting as the slide spring did feel kind of lazy to me when releasing it at first. The velocity was close to the mark and for sure as claimed in a warmer environment, and the accuracy was as good as you are going to get with a blowback BB Pistol. I didn't even mind the double action trigger at all as the first portion of the trigger is very light with almost no friction and even the release is not very heavy but for sure heavier than a true Single Action Trigger. I also like that you are going to get a lot more magazines worth of shots from a single CO2 out of the Umarex Glock 17 Gen 5 MOS CO2 Blowback BB Pistol with it’s semi blowback action and magazine design that seals off the BB into the breach area of the barrel. If you are OK with a DO trigger on a Glock, then I would suggest you chose the Glock 17 MOS Semi Blowback over the Glock 19 MOS Full Blowback simply for the higher fps, better CO2 efficiency and slightly improved accuracy.  Read post: www.replicaairguns.com/posts/2025/8/5/umarex-glock-17-gen-5-mos-co2-blowback-bb-pistol-field-test-review Buy the Umarex Glock 17 Gen 5 MOS CO2 Blowback BB Pistol in Canada: https://www.replicaairguns.ca/glock-17-gen-5-mos-45mm-co2-bb-air-pistol Buy the Umarex Glock Airguns in the US: https://www.replicaairguns.us/search?q=glock%2019