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Hey everyone, Michael here with another field test video! Today, we are putting the Umarex Glock 17 Gen 5 CO2 Full Blowback BB Pistol through its paces in the indoor shooting range. If you're looking for the nitty-gritty details, specifications, and close-up angles, be sure to check out my dedicated Table Top video. For this session, we are strictly focused on performance: seeing how this realistic blowback replica handles when we actually put some rounds downrange. While this specific model does include the MOS plates for mounting a red dot, I decided to stick with the standard white-dot open iron sights for today's target testing.

Chronograph and Velocity Testing

Starting things off with the chrony test, I popped in a brand new CO2 cartridge to see what kind of speed we could get out of this Glock. Generally, with a heavy, fast-cycling blowback system like this one, I expect velocities to hover right around the 300 FPS mark. Let's see how the Gen 5 performed:

• Shot 1: 296 FPS

• Shot 2: 260 FPS

• Shot 3: 256 FPS

• Shot 4: 285 FPS

• Shot 5: 257 FPS

• Shot 6: 283 FPS

As you can see, the numbers jumped around a fair bit, and we stayed just shy of that 300 FPS threshold. This isn't super surprising, when you have a really stiff, snappy slide spring eating up that CO2 to cycle the blowback action, you're usually trading off a little bit of velocity and consistency to get that realistic recoil feel.

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Accuracy Downrange at 30 Feet

Next up, I stepped back to my standard 30-foot mark to see what kind of grouping the Glock 17 could pull off on a fresh paper target. I did actually loaded 10 BBs for this string, which means the slide did lock back on the final shot since the magazine wasn't fully topped up to capacity.

Shooting the Umarex Glock 17 Gen 5 CO2 Full Blowback BB Pistol is an absolute blast. The trigger is fantastic, it has a failry light, short pull that perfectly replicates that classic Glock single-action feel. By holding my aim dead center, or maybe just a hair under the bullseye, the end result was a just over 2 inch grouping fairly well centered left to right, but a bit low on the bullseye. It's definitely more than accurate enough for practical, fast-paced action shooting.

Shooting Feel and MOS Features

The physical shooting experience is really where this Umarex replica shines. The slide action is incredibly crisp and fast, giving you a surprisingly snappy kick that feels highly authentic in the hand.

One huge bonus for this Gen 5 model is the Modular Optic System (MOS) design. Even though I rolled with the iron sights today, you have all the included plates needed to drop a micro red dot on top if that's your preference. Combining that optics readiness with a trigger that lets you rip off quick follow-up shots without pulling your muzzle off-target makes this an absolute joy to shoot.

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Final Thoughts

Ultimately, the Umarex Glock 17 Gen 5 CO2 Full Blowback BB Pistol is a top-tier training option. If you own the real steel 9mm version, this 1:1 BB replica is a no-brainer for running speed reloads, practicing your draw, and doing target transitions in the comfort of your own garage or backyard. You're saving a ton of money on ammo while getting some highly effective muscle memory practice. It might not win any awards for sheer FPS or sniper-level target accuracy, but as a realistic action plinker and trainer, it absolutely hits the mark.

Where to Buy

• Buy the Umarex Glock 17 Gen 5 CO2 Full Blowback BB Pistol in Canada

• Buy Glock Air Pistols in the US

Thanks for tuning in! Make sure to head over and follow the Replica Airguns channels on Rumble and Vimeo. We are uploading as much content as possible to Rumble right now, and your support means the world as we keep building up our video community!

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First Look & Overview In this table top review, we are taking a look at the Umarex Glock 17 Gen 5 MOS Full Blowback CO2 4.5mm BB Pistol. We will be focusing purely on the table-top aspects for this video, so there is no active shooting featured here; a dedicated field test shooting video will be coming down the road. As a fully licensed replica from Umarex, it offers all the authentic Gen 5 styling and markings you would expect. Today, we are specifically looking at the full blowback version, which prioritizes a true-to-life shooting experience and heavy recoil simulation over pure power and efficiency.

Specifications

• Caliber: 4.5mm steel BBs

• Action: Single action, full blowback

• Magazine: 17-round drop-out magazine

• Power Source: 12-gram CO2

• FPS: Maximum 300 FPS

• Weight: 1.5 lbs (680 grams)

• Length: 7.95 inches (20.2 cm)

• Barrel: 4-inch (10 cm) smooth bore

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Build Quality & Design The Umarex Glock 17 Gen 5 MOS features an incredibly realistic design, boasting a heavy metal slide paired with a durable polymer frame. It completely matches the heft of its real steel counterpart, weighing in at a solid 1.5 pounds, and feels very comfortable in the hand. The slide comes with the signature Gen 5 front serrations and cycle.s completely back during operation, opening the ejection port fully to reveal the wide open magwell

Magazine & Loading System Loading the Umarex Glock 17 Gen 5 MOS BB Pistol is straightforward. It utilizes a heavy, full-size drop-out magazine that holds 17 rounds of 4.5mm steel BBs. The magazine follower can be pulled down and easily locked in place with a quick flick, making loading incredibly fast. Unlike partial blowback models where the magazine pulls forward to seal the breech, this model utilizes a traditional Airsoft-style follower-fed system where the slide simply strips the BB and loads it directly into the breech. While this design is less CO2 efficient and results in slightly less power, it is essential for delivering that complete, highly realistic full blowback action.

Handling & Controls True to the Glock platform, the handling on this replica is extremely authentic. It incorporates an ambidextrous slide catch release that smoothly locks the heavy slide rearward when the magazine runs empty. The single-action trigger pull is relatively light and short. In terms of safeties, it has the classic built-in trigger safety, but Umarex has also integrated an additional cross-bolt safety directly onto the trigger. While it functions well, it can be slightly awkward to push flush and disengage with your finger when you are preparing to shoot.

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Sights & Optics This specific MOS (Modular Optic System) version truly shines when it comes to aiming options. Out of the box, it comes equipped with the standard fixed white-dot front and rear sights for easy target acquisition. However, the package also includes an Allen key and four different adapter plates, allowing you to seamlessly mount a variety of micro red dot sights directly to the slide. If you want to add more accessories, the built-in lower rail easily accommodates tactical lights or lasers.

Performance Expectations The Umarex Glock 17 Gen 5 MOS Full Blowback CO2 4.5mm BB Pistol operates with a heavy focus on realism. Because the heavy metal slide travels all the way back with every shot, you get a very satisfying simulated recoil. However, this heavy action demands a significant amount of CO2. As a result, you can expect a slightly lower velocity, coming in at around 300 FPS, and fewer overall shots per CO2 cartridge compared to partial blowback models.

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Pros

• Realistic Replica in looks, weight, and full blowback function.

• Good weight and feel to it, build quality seems excellent as with all the Umarex Licensed Glocks.

• Really nice looking and full featured replica of the original Glock 17 Gen 5 MOS.

• Fully Glock licensed via Umarex.

• Easy to see white dot sights front and back.

• Recessed barrel for added realism.

• Accessory rail under barrel for adding a laser or tactical light.

• Full slide travel blowback action provides a true, hard-recoil shooting experience.

• Can be field stripped just like the real steel version.

• Cross Bolt Safety built into the trigger.

• Full size drop out metal magazine that holds the CO2 and 4.5mm steel BBs.

• Slide spring is super snappy and firm, giving an exceptionally crisp and authentic recoil effect.

• Warning instructions are nice and discreet under trigger guard.

• Lighter, true single-action trigger pull as the full blowback slide cocks the internal striker on every cycle.

Cons

• Full blowback action decreases CO2 efficiency, resulting in fewer shots per cartridge.

• Slightly lower velocity (300 FPS) due to the heavy slide action.

• No adjustable sights out of the box without mounting a red dot.

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Final Thoughts The Umarex Glock 17 Gen 5 MOS is a fantastic option for anyone who values maximum realism and training utility over raw FPS. While you do trade some CO2 efficiency for the heavy slide travel, the simulated recoil and authentic handling make it an incredibly enjoyable Airgun to shoot. The inclusion of the MOS plates is a massive bonus for modern shooters wanting to run optics. Stay tuned for the upcoming shooting video to see exactly how this performs down range.

• Buy the Umarex Glock 17 Gen 5 MOS CO2 Full Blowback 4.5mm BB Pistol in Canada

• Buy Glock Airguns in the US

We’ve got yet another box on the table today for our August Mystery Unboxing. It took a while to arrive, but it was absolutely worth the wait. We’re diving into four highly anticipated products across the BB, Pellet, and Airsoft categories.

Here is a quick first look at what’s hitting the review table soon!

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Marksman Model 1018 .177 Caliber Air Pistol

First out of the box is the Marksman 1018. This is a very budget-friendly (around $50), 1911-inspired spring-actuated pistol. It features fiber-optic sights on the front and back, making it an excellent, quiet option for basement or backyard plinking. While it can technically shoot darts and bolts, we'll be sticking to BBs and pellets for our tests.

Basic Specifications:

• Action: Single-stroke spring piston

• Caliber: .177 Caliber (BBs and Pellets)

• Capacity: 18-shot internal BB reservoir

• Velocity: Up to 200 FPS

• Weight & Length: 1 lb / 9.0 inches

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Umarex Glock 17 Gen 5 MOS CO2 Blowback BB Pistol

Next up is a beauty from Umarex, the Glock 17 Gen 5 MOS. If you love ultra-realistic replicas, this is it. It features a heavy full-metal slide spring, a recessed barrel, and classic white dot sights. The "MOS" means it comes ready with all the mounting plates you need to attach your favorite red dot sights. It runs on a full-size, drop-out 17-round metal magazine and utilizes a full blowback system for ultra realistic blowback operation.

Basic Specifications:

• Action: Semi-auto full blowback, single CO2 cartridge

• Caliber: 4.5mm (.177) steel BBs

• Capacity: 17-round drop-out metal magazine

• Velocity: Approximately 300 FPS

• Weight & Length: 1.5 lbs / 7.95 inches

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A&K M1873R M-LOK Lever Action Airsoft Gas Rifle

I'm incredibly excited to finally do a proper field test on this one. This is a replacement for a previous model that had a leaky loading valve. This gas-operated, "Mares Leg" style lever-action rifle is heavily modernized. It features a gorgeous real wood stock, an enlarged lever loop, a Picatinny top rail, an M-LOK handguard for accessories, and a mock suppressor on the front.

Basic Specifications:

• Action: Gas Non-Blowback Lever Action (Green Gas)

• Caliber: 6mm Airsoft BBs

• Capacity: 25-round internal magazine

• Velocity: 360 - 390 FPS (with 0.20g BBs)

• Weight & Length: 3.7 lbs / 24.5 inches

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Specna Arms SA-E10 PDW Edge AEG Airsoft Rifle

Finally, we have an absolute powerhouse in a tiny package: the Specna Arms SA-E10 PDW. This is a super-compact AR-style AEG with a polymer-metal build and a telescopic stock. Specna Arms goes above and beyond with the box contents on this one. Along with the rifle, you get two S-MAG mid-cap magazines, an additional M90 drop-in spring to easily lower your FPS for indoor fields, a Deans adapter, and a vertical foregrip.

Basic Specifications:

• Action: Electric (AEG) with Pre-installed MOSFET

• Capacity: Includes two 125-round mid-cap S-MAG magazines

• Velocity: 375-390 FPS (Drops to ~310-320 FPS with included M90 spring)

• Length: Minimum 505 mm (approx. 19.8 inches)

• Inner Barrel: 160 mm precision 6.03mm barrel

Stay tuned to the Replica Airguns channel, as I'll be doing dedicated tabletop and field test shooting videos for all of these very soon.

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I finally got my hands on the new Umarex Glock 17 Gen 5 MOS CO2 Blowback BB Pistol that was introduced at this years SHOT Show, and I have already made my Table Top Review Video so make sure to watch that video for information on specifications, details, Pro’s and Con’s and more close up video… In this Field test Shooting video I focus on the performance of the Umarex Glock 17 Gen 5 MOS CO2 Blowback BB Pistol by testing the velocity out with my Chronograph, and I also shoot 10 rounds into a paper target setup 30 feet down range to see what the real world velocity and accuracy truly is.

Starting off with the Velocity portion the test, as always I use a brand new 12 gram CO2 along with standard 5.1 grain Steel BB’s. Temperature for the record was about 22 degrees Celsius or 72 degrees Fahrenheit. Here are the result of my multi shot Chronograph testing as it seemed to keep shooting faster and fast so I ended up using the last 5 shots for my average: 354, 349, 348, 343, 344 fps with an average of 348 fps. That was fairly close but just a bit under the 370 claimed fps. Warmer temperatures could for sure get this Blowback Airgun up to the slightly higher claimed fps.

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Next I shot 10 rounds into a fresh paper target 30 feet down range using a semi-rested shooting position, with my hands resting on a sand bag up front, and sitting on a comfortable stool in the back, for somewhat stable shooting. There is always going to be a bit of human factor involved, but I seemed steady on this day, and I did get a nice result for a Blowback CO2 Air Pistol. The Umarex Glock 17 Gen 5 MOS CO2 Blowback BB Pistol shot good for me out of the box. The grouping spread out about 2 inches total well center up and down, just a hair above the bullseye but did wonder off to the left a little bit. Still a very good result for a blowback Airgun.

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.

• Buy the Umarex Glock 17 Gen 5 MOS CO2 Blowback BB Pistol in Canada

• Buy Glock Airguns in the US

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I finally got my hands on the new Umarex Glock 19 Gen 5 MOS CO2 Blowback BB Pistol that was introduced this year at SHOT Show and I have already made my Table Top Review Video so make sure to watch that video for information on specifications, details, Pro’s and Con’s and more close up video… In this Field test Shooting video I focus on the performance of the Umarex Glock 19 Gen 5 MOS CO2 Blowback BB Pistol by testing the velocity out with my Chronograph and also shooting 10 rounds into a paper target setup 30 feet away to see what the real world velocity and accuracy actually is.

Starting off with the Velocity portion the test, I us a brand new 12 gram CO2 along with standard 5.1 grain Steel BB’s. Temperature for the record was about 22 degrees Celsius or 72 degrees Fahrenheit. Here were the result of my 5 shot Chronograph testing: 278, 275, 273, 273, 271 fps with an average of 274 fps. That was very consistent for a full blowback CO2 Airgun and close to the 280-290 claimed fps. Warmer temperatures could for sure get this Airgun up to the claimed fps.

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Next I shot 10 rounds into a fresh paper target 30 feet down range using a semi rested shooting position, so with my hands resting on a sand bag up front and sitting on a stool in the back for somewhat stable shooting. There is always a bit of human factor involved but I seemed pretty steady on this day, and for what I consider to be a good result for a Full Blowback CO2 Air Pistol. The Umarex Glock 19 Gen 5 MOS CO2 Blowback BB Pistol shot a little bit low out of the box but well centered left to right. The grouping spread out about 3 inches total and that was mostly in the elevation so perhaps an inconsistency in velocity may have played a roll. In terms of windage (left to right placement), the group was closer to two inches total.

I was very pleased with the performance of the Umarex Glock 19 Gen 5 MOS CO2 Blowback BB Pistol , it shot really close to the claimed velocity with a fairly consistent fps for the most part. The accuracy was also right where I would expect a gun like this to perform and even though it shot a bit low on the bullseye, it was in the ball park and easy enough to simply adjust ones aim point to get more on target. The blowback action is quick and snappy with a nice simulated recoil and the single action trigger feels good. I did end up shooting two full 17 round magazines through this Airgun with no problem, and after letting it warm up a bit there is more than likely a third magazine left of CO2. If you want the most ultra realistic BB version of a Full Blowback Airgun with the ability to add a Red Dot to the top slide, then the Umarex Glock 19 Gen 5 MOS CO2 Blowback BB Pistol is the prefect choice!

• Buy the Umarex Glock 19 Gen 5 MOS CO2 Blowback BB Pistol in Canada

• Buy the Umarex Glock 19 Gen 5 MOS CO2 Blowback BB Pistol in the US

Wow, two mystery boxes this time to unpack and see what’s inside! I did have a bit of an idea that there was going to be two new BB Blowback CO2 Glocks from Umarex, the same ones I checked out at this years SHOT Show. There was also some more Air Pistols from various companies. One from Novritsch, the SSX23 NBB Gas Airsoft Pistol, that looked like it was Blowback as the slide does cycles. The Daisy 415 Powerline CO2 BB Pistol, a fairly simplistic Air Pistol, the Vigilante Dual Ammo CO2 BB/Pellet Revolver, I’m pretty sure I have visited before from Crosman. And one more item from Umarex, the Umarex Ruger P345 CO2 NBB Airsoft Pistol keeping to the basic low cost theme.

I also got a few accessor items from a company called GEAR STOCK, Some CO2 in 12 and 88 gram along with some 6mm aluminum Airsoft BB’s. A very cool rechargeable red and green laser that comes in a nice hard shell case and it has a picatinny rail on the bottom she you can stack a second accessory under it.

Here are some links and specs for the Airguns I show off in this mystery box video:

Umarex Glock 19 Gen 5 MOS CO2 Blowback BB Pistol

• Type: CO2 Full Blowback BB Pistol

• Velocity: 280

• Weight: 1.44 Pounds

• Length: 6.9 inches

• Ammo Capacity: 17

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Umarex Glock 17 Gen 5 MOS CO2 Blowback BB Pistol

• Type: CO2 Blowback BB Pistol

• Velocity: 450

• Weight: 1.5 Pounds

• Length: 7.95 inches

• Ammo Capacity: 18

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Umarex Ruger P345 CO2 NBB Airsoft Pistol

• Type: CO2 NBB Airsoft Pistol

• Velocity: 380

• Weight: 1.7 Pounds

• Length: 7.95 inches

• Ammo Capacity: 15

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Novritsch SSX23 NBB Gas Airsoft Pistol

• Type: Gas NBB Airsoft Pistol

• Velocity: 450

• Weight: 1.9 Pounds

• Length: 9.75 inches

• Ammo Capacity: 24

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Crosman Vigilante Dual Ammo CO2 BB/Pellet Revolver

• Type: CO2 BB and Pellet Revolver

• Velocity: 465-BB’s / 435-Pellets

• Weight: 2 Pounds

• Length: 11.36 inches

• Ammo Capacity: 6-BB / 10-Pellet round rotary magazines

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Daisy 415 Powerline CO2 BB Pistol

• Type: CO2 NBB BB Pistol

• Velocity: 495

• Weight: 1 Pound

• Length: 8.75 inches

• Ammo Capacity: 21