GLOCK 17 Gen5 MOS CO2 Airsoft Pistol
https://www.umarexusa.com/glock-17-gen5-mos-2276361
What is the GLOCK 17 Gen5 MOS CO2 Airsoft Pistol?
This is a CO2-powered, 6mm blowback airsoft pistol modeled after the GLOCK 17 Gen5 MOS platform. Umarex lists it as a Gen5 model with full blowback action, MOS adapter plates included, and a threaded barrel.
What does MOS mean on this airsoft pistol?
MOS stands for Modular Optic System. On this model, that means the pistol includes four MOS optic plates and the manual shows an optic cut with a mounting cover plate and instructions for attaching an MOS plate and sight.
What type of power source does this pistol use?
This pistol uses 12g CO2 cartridges. Both the Umarex product page and the manual specify CO2 power and instruct users to use only 12g CO2 capsules.
What do I need to use this pistol right out of the box?
You need 12g CO2 cartridges and 6mm airsoft BBs. Umarex lists 12g CO2 power on the product page, and the manual states the pistol uses .24 caliber, 6mm plastic BBs. Compatible consumables you already approved include Umarex 12g CO2 Cylinders 12ct (https://www.umarexusa.com/12g-co2-cylinders-12ct) and Elite Force 20 Gram 2700 Count BBs (https://www.umarexusa.com/elite-force-20-gram-2700-ct).
What type of BBs should I use with this pistol?
This pistol is designed for 6mm plastic BBs. The manual specifically warns against using damaged, dirty, oversized, or non-recommended BBs and recommends precision BBs from Umarex USA or Elite Force for proper operation.
What is the magazine capacity of this pistol?
This pistol uses a 17-round drop-free magazine. The Umarex product page lists a 17-round drop-free magazine, and the manual’s loading section also shows a 17-round capacity.
Is this airsoft pistol suitable for beginners?
Yes, it can work for beginners who want a realistic CO2 blowback pistol, but it is better suited to users who are comfortable following safety and maintenance instructions. The manual states the airsoft gun is not a toy, is for ages 18+, and requires eye and face protection.
What does blowback mean on this pistol?
Blowback means the slide cycles during firing to create a more realistic shooting experience. Umarex specifically lists this model as having full blowback action.
Can I mount an optic on this airsoft pistol?
Yes, this model is built to accept optics through its MOS system. Umarex says it includes four MOS optic plates, and the manual includes a section for attaching the MOS plate and sight.
Does this pistol come with MOS plates?
Yes, Umarex says MOS adapter plates are included. The manual also shows four adapter plates in the optic mounting section.
Does this pistol have a threaded barrel?
Yes, Umarex lists this model with a 14mm CCW threaded barrel. That makes barrel-thread-related compatibility an important buyer question, although any accessory fit should still be confirmed product by product before purchase.
What kind of performance can I expect from this pistol?
Umarex lists this pistol at 320 FPS with .20g BBs. The manual also notes that real-world performance can be affected by projectile brand, lubrication, barrel condition, and temperature.
How do I install a CO2 cartridge in this pistol?
CO2 is installed through the magazine. The manual shows that the base plate is removed, a 6 mm Allen key is used to open the piercing screw, a drop of silicone oil is placed on the CO2 tip, and the screw is tightened until the capsule is pierced and sealed.
Does this pistol have an adjustable hop-up?
Yes, this pistol has an adjustable hop-up. The manual includes a dedicated hop-up adjustment section and also warns that over-adjusting the hop-up can damage the slide and void the warranty.
Does this pistol have a reversible magazine release?
Yes, the manual includes a specific section on reversing the magazine release. That can be useful for users who prefer a different control setup, but any changes should be made exactly as shown in the manual.
What maintenance does this pistol require?
This pistol requires light routine maintenance, including basic cleaning and silicone lubrication on moving parts. The manual recommends 1 to 2 drops of Elite Force Slick silicone oil on moving parts every 1,000 shots and warns not to use oils containing acid or resin and not to drip silicone oil directly into the barrel.
What causes low power or inconsistent shooting?
Common causes include low CO2 pressure, a dirty barrel, extreme temperatures, wrong ammunition, lubrication issues, or a damaged projectile stuck in the barrel. Those causes are listed in the manual’s troubleshooting section.
Can this pistol be used for backyard target shooting?
It can be used for backyard target shooting only when it is done responsibly and with proper safety precautions. The manual requires eye protection, a safe direction, and a suitable backstop, and warns not to shoot at hard surfaces, water, glass, or other fragile surfaces because BBs may bounce or ricochet.
