Description
Umarex Glock G17 Gen5 MOS Gas Blowback Airsoft Pistol in Black
The Umarex Glock G17 Gen5 MOS Gas Blowback Airsoft Pistol in Black brings the modern Gen5 G17 layout together with one of the most useful additions for today's airsoft player: an optics-ready MOS slide. Fully licensed with official GLOCK trademarks, this full-size airsoft pistol sticks closely to the clean, functional appearance of the Gen5 platform rather than covering it in unnecessary extras. You get a metal blowback slide, polymer frame, familiar GLOCK controls and an adjustable hop-up, all wrapped up in a straightforward black finish. For players who appreciate realistic replicas, those proper markings and recognisable proportions make a noticeable difference the moment you get it in your hands.
The headline feature is the MOS, or Modular Optic System, slide. A removable cover plate sits on top of the metal slide, preparing the pistol for compatible miniature red-dot sight setups. That saves you from having to replace the complete slide simply because you fancy running an optic later. Choose the correct compatible mounting arrangement and sight, zero it properly, and you've got a very tidy red-dot-equipped GBB pistol. It's worth checking adapter and optic compatibility before ordering, as mounting hardware and red-dot sights may be sold separately. Prefer traditional sights? Leave the cover fitted and run the pistol in its standard configuration. Nice and simple.
Being a Green Gas blowback airsoft handgun, the G17 has considerably more going on than a basic non-blowback BB pistol. Pull the trigger and the metal slide cycles rearwards before returning into battery for the following shot, producing that crisp mechanical snap that makes GBB pistols so satisfying. The metal upper also gives the pistol convincing movement and weight while the polymer lower keeps the overall construction faithful to the GLOCK formula. There's enough recoil feedback to make each shot feel involved without the pistol becoming awkward to bring back onto target. Present, fire, recover, repeat. It quickly becomes second nature.
The Gen5 frame is another welcome part of the package. Gone are the pronounced finger grooves associated with some earlier generations, leaving a straighter front strap that allows your fingers to find their own comfortable position. Hands vary enormously, so that's a small change that can make a surprisingly big difference during a long skirmish. The textured polymer grip provides plenty of purchase, while the full-size G17 proportions give you enough room for a secure two-handed hold. It feels particularly natural as a conventional secondary alongside an airsoft rifle or Airsoft AEG, but there's enough pistol here to build a dedicated CQB loadout around it as well.
Umarex has also reproduced the useful Gen5 ambidextrous slide stop, allowing the control to be accessed from either side of the frame. Left-handed players will appreciate that immediately, while right-handed users may also find the additional control useful depending on their reload technique. The familiar GLOCK-style trigger safety is present too, with the central safety blade forming part of the trigger face. Up front, the frame incorporates an accessory rail for compatible pistol lights and other suitable rail-mounted equipment. Pair a compact light with a miniature red dot and you've got a very capable CQB setup without making the pistol look like it's carrying the contents of an entire accessories cabinet.
Inside, an adjustable hop-up system allows the backspin applied to the BB to be tuned for your chosen ammunition. It's worth spending a few minutes getting this properly set rather than becoming obsessed with muzzle velocity alone. A correctly adjusted hop can make a much bigger difference to practical accuracy and usable range than chasing another handful of FPS. The quoted velocity range is approximately 251-300 FPS, although output from any Green Gas airsoft gun can change according to temperature, gas pressure, BB weight and magazine temperature. Cold magazines in the middle of winter will naturally behave differently from warm magazines on a summer game day.
The full-size G17 format works particularly well as a skirmish sidearm because there's plenty of grip to control while the overall design remains uncomplicated. Draw it from a suitable holster and the sights naturally come into view, while the MOS arrangement gives you the option of moving to a red-dot setup when you fancy something faster for close-range target transitions. Ever come around a CQB corner with your primary pointing somewhere completely unhelpful? That's exactly where a well-set-up airsoft pistol earns its keep. The G17's straightforward ergonomics make it easy to get into action without having to remember an elaborate collection of external controls.
Magazine compatibility does need a little attention with this particular model. VFC magazines are not compatible with the Umarex Glock G17 Gen5 MOS Model 2.6563, so don't assume that any magazine advertised for a G17-style gas pistol will automatically fit and function. When adding spare magazines to your loadout, make sure they're specifically confirmed for this version of the pistol. It's a simple check, but one that can save plenty of head-scratching when you're packing kit the evening before a game.
Overall, the Umarex Glock G17 Gen5 MOS makes a strong case for itself as a modern full-size gas blowback airsoft pistol. The official GLOCK licensing gives replica enthusiasts the authentic trademarks they're looking for, while the heavy metal slide, polymer Gen5 frame, ambidextrous slide stop and adjustable hop-up provide the practical features skirmishers actually use. The factory MOS arrangement is the icing on the cake, giving you an easy route towards an optics-equipped setup without forcing you to run one from day one. Clean, functional and refreshingly uncomplicated – pretty much what you'd want from a modern G17.
Highlights
- Fully licensed GLOCK G17 Gen5 replica with official trademarks
- MOS optics-ready metal slide with removable cover plate
- Realistic Green Gas blowback action with cycling metal slide
- Gen5 textured polymer frame without moulded finger grooves
- Ambidextrous slide stop for left or right-handed operation
- Adjustable hop-up for tuning BB trajectory
- GLOCK-style trigger safety and familiar full-size ergonomics
- Integrated accessory rail for compatible lights and other equipment
What's Included
- Umarex Glock G17 Gen5 MOS Gas Blowback Airsoft Pistol in Black
- Supplied gas magazine
- MOS cover plate fitted to the slide
Technical Specifications
- Manufacturer / Brand: Umarex
- Model: Glock G17 Gen5 MOS
- Model Number: 2.6563
- SKU: 111812
- Type: Gas Blowback Airsoft Pistol / GBB Pistol
- Platform: GLOCK G17 Gen5
- Power Source: Gas / Green Gas
- Action: Gas Blowback
- Fire Mode: Safe / Single Shot
- Muzzle Velocity: Approx. 251-300 FPS
- Construction: Metal / Polymer
- Slide: Metal, MOS optics-ready
- Frame: Textured Gen5 polymer frame
- Hop-Up: Adjustable
- Optics System: Modular Optic System (MOS)
- Accessory Mounting: Integrated Weaver / Picatinny-style rail
- Slide Stop: Ambidextrous
- Trigger: GLOCK-style trigger safety
- Blowback: Yes
- Colour: Black
- VFC Magazine Compatibility: No – VFC magazines are not compatible with this model
Get (RIF) verafied, we accept AirsoftVerify.co.uk player codes, and all other major valid defence schemes!
Product Reviews
Delivery & Returns
Delivery Information
Affordable Shipping – Starting from Just £2.50
Our delivery prices begin at only £2.50 for UK mainland orders, with free standard delivery available on all orders over £100*. To quickly find out the exact shipping cost for your items, simply add everything to your basket. In the basket, you'll see a link under the subtotal titled "Estimate Shipping & Tax"—click this, enter your delivery details, and you’ll get a full quote including whether you qualify for free shipping.
Free Shipping Offers
- UK Mainland: Free on orders over £100*
- Northern Ireland, Republic of Ireland, Scottish Highlands & Islands, and Isle of Man: Free on orders over £100*
- Channel Islands: Unfortunately, we do not offer free shipping to this region
*Free shipping is a 5 working day service. For example, an order placed on Monday would typically arrive the following Monday.
Mainland UK Delivery Options
- Royal Mail: From £2.50 (2 working days, price based on weight)
- Economy Delivery: £4.95 flat rate (2–4 working days)
- Express Delivery: £6.95 flat rate (1–2 working days)
Working days exclude Saturdays, Sundays, and public holidays. Need your order on a Saturday? We can arrange this for £20—please contact us directly after placing your order to pay the balance.
Delivery Prices – Outside Mainland UK
- Northern Ireland: From £5.95
- Scottish Highlands & Islands: From £5.95
- Isle of Man: From £5.95
- Republic of Ireland: £6.95 flat rate (any size order)
- Channel Islands: £7.95 flat rate (any size order)
We strive to keep our delivery charges as fair and straightforward as possible, with clear options to suit all needs and budgets.