If you have been looking for one CO2 pistol that does everything, the Glock 17 Dual Ammo Blowback CO2 Air Pistol deserves a spot at the top of your list. Built by Umarex under official Glock licence, this 1:1 scale replica fires both steel BBs and .177 pellets, cycles a full blowback slide, and looks and feels remarkably close to the real thing. At £179.99 it sits in the sweet spot between entry-level BB pistols and the pricier pellet-only Glocks.
First Impressions
Out of the box, the first thing you notice is the weight. At 726g with a metal slide and polymer frame, it has the same satisfying heft as the firearm it copies. The stippled grip, finger grooves and slide serrations are all faithfully reproduced, and the slide carries the licensed GLOCK 17 markings. It comes with the magazine included, so you only need a 12g CO2 capsule and something to shoot to get started.
Performance
The headline feature is the dual ammo capability. The rotary system takes four eight-shot magazines, giving you the flexibility to run steel BBs at up to 365 FPS for casual plinking, or switch to .177 pellets at around 320 FPS when you want tighter groups. The rifled barrel genuinely helps with pellet accuracy, and in our experience pellets are the better choice once you move beyond six yards. Blowback action costs you shots per CO2 capsule — around 60 in total — but the realistic slide cycling on every trigger pull is worth the trade for most shooters.
Recoil feel is where this pistol really earns its keep. The slide kicks back crisply with each shot, the trigger reset is short and positive, and the Glock-style trigger safety works exactly as it should. Semi-auto only, with a manual safety for added peace of mind during handling and storage.
Build Quality
Umarex’s licensed replicas have a strong reputation, and this one upholds it. The fit and finish are excellent, the controls — slide lock, takedown lever, magazine release — all operate like the real Glock 17, and the fixed sights sit cleanly in the standard notch-and-post pattern. The four rotary magazines click in and drop free without fuss, and loading them is straightforward once you have done it a couple of times.
Key Specifications
- Brand: Glock (licensed replica by Umarex)
- Calibre: .177 (4.5mm) BB and pellet
- Power: 12g CO2 capsule
- Action: Semi-auto with full blowback
- Magazine: 4 rotary mags, 8 shots each
- Velocity: 365 FPS (BB) / 320 FPS (pellet)
- Shots per capsule: approx. 60
- Weight: 726g
- Overall length: 200mm
- Safety: Manual, plus Glock trigger safety
Who Is It For?
This is an ideal pick for target shooting and plinking fans aged 18 and over who want one pistol that covers both BB and pellet shooting. As with all air pistols sold in the UK under the VCR Act 2006, you must be 18 or older to buy, and the pistol is dispatched with age verification. Keep your shooting on private land with the landowner’s permission, and use sensible backstops and eye protection at the range.
Verdict
The Glock 17 Dual Ammo Blowback CO2 Air Pistol is arguably the most versatile licensed Glock replica in the Just Airguns range. Dual ammo flexibility, genuine blowback realism and excellent build quality at £179.99 make it an easy recommendation for anyone browsing the Air Pistols category who wants a single pistol that does it all. If you have been deciding between a BB pistol and a pellet pistol, this one ends the argument — just buy both in one gun.