10 Umarex Uzi 177 Co2 of 2026 For Leak-Free Plinking

1

Umarex High-Grade CO2 Cartridges for Pellet Guns, BB Guns and

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  9.4
• Brand
  Umarex

Key specs2

Cartridge Quantity

12 cartridges

Valve Cleanliness

Designed to keep internal airgun seals clear of oil and debris, protecting valves from slow pressure leaks during long shooting sessions.

Pros & cons32

Pros

• Clean CO2 formula helps protect internal airgun valves from residue buildup
• Standard 12-gram size fits compatible tactical BB and pellet airguns
• Compact 12-pack footprint is easy to store inside a range bag

Cons

• Smaller 12-count quantity depletes rapidly during extended plinking sessions
• Purchase availability is restricted to specific zip codes

2

Umarex High-Grade CO2 Cartridges for Pellet Guns, BB Guns and

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  9.4
• Brand
  Umarex

Key specs2

Cartridge Quantity

30 cartridges

Propellant Consistency

Standard 12-gram capsules provide clean pressure for repeated cycling without gumming up delicate magazine puncture seals.

Pros & cons32

Pros

• Bulk 30-pack provides more shooting sessions between refills
• Clean-filtered gas prevents valve fouling and chronic air leaks
• Standard 12-gram cartridge size fits many Umarex air pistols

Cons

• Shipping restrictions apply to certain residential zip codes
• Shots per capsule vary depending on gun action and weather

3

Air Venturi Steel BBS, 177 Cal, 5.1 Grains, Zinc-Plated, 2,500ct,Chrome

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  9.4
• Brand
  Air Venturi

Key specs2

Projectile Specifications

• .177 caliber steel BBs
• 5.1 grain weight
• Corrosion-resistant zinc plating
• 2,500 count squeeze bottle

Dispenser Design

Built-in pour spout channels steel BBs directly into magazine loading ports without loose spills on the bench.

Pros & cons42

Pros

• Zinc coating delivers rust resistance to prevent feeding hang-ups
• Precision ground steel BBs reduce surface blemishes for smooth flight
• Easy-pour spout bottle prevents spills when filling BB magazines
• Generous 2,500-count volume handles high-volume plinking

Cons

• Steel BB construction is unsuitable for rifled barrels not rated for steel
• Exact flight velocity depends on the specific airgun firing them

4

Glock 19 Gen3 .177 Caliber BB Gun Air Pistol

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  8.8
• Brand
  Umarex

Key specs2

Velocity Rating

Up to 410 fps

Accessory Mounting

Integrated lower Weaver rail allows direct attachment of tactical lights or targeting accessories to the frame.

Pros & cons42

Pros

• Delivers steel BB velocities up to 410 fps for target plinking
• 15-shot magazine capacity offers sustained backyard target shooting
• Integrated Weaver rail accommodates tactical lights and laser units
• Officially licensed Glock markings and authentic Gen3 frame styling

Cons

• Operates on 12-gram CO2 cartridges that are not included in the box
• Fixed sights lack windage and elevation screw adjustments

5

Umarex 2252109 Brodax Air Pistol .177 BB , Black

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  8.6
• Brand
  Umarex

Key specs1

Caliber Verification

Chambered specifically for .177 steel BBs. Check product packaging to confirm compatible rotary clip part numbers.

Pros & cons32

Pros

• Dedicated .177 caliber steel BB platform for target plinking
• Lightweight polymer frame provides easy handling for long shooting sessions
• Distinct tactical revolver styling sets it apart from standard semi-auto replicas

Cons

• CO2 cartridge requirements and velocity must be verified on the product page
• Magazine capacity and sighting system are unstated in the listing

6

Umarex GLOCK 17 Blowback .177 Caliber BB Gun Air Pistol,

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  8.6
• Brand
  Umarex

Key specs1

Magazine Compatibility

Engineered exclusively for the Umarex Glock 17 Gen3 Blowback .177 BB pistol. Confirm your exact model number before purchasing.

Pros & cons32

Pros

• Dedicated spare magazine enables rapid reloads during shooting drills
• Factory fit engineered specifically for the Gen3 Glock 17 Blowback model
• Houses standard .177 caliber steel BB ammunition

Cons

• Compatible strictly with the Glock 17 Blowback and will not fit other frames
• Sold as a spare magazine only with no gun or CO2 included

7

Umarex MCP .177 Caliber BB Gun Air Pistol Kit -

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  8.4
• Brand
  Umarex

Key specs2

Kit Components

• Umarex MCP air pistol
• Two 12g CO2 cartridges
• 100 steel BBs
• Protective safety glasses

Muzzle Velocity

Up to 410 fps

Pros & cons42

Pros

• Complete kit includes the air pistol, 100 steel BBs, CO2, and safety glasses
• Fires .177 steel BBs at listed speeds up to 410 fps
• Powered by standard, widely available 12-gram CO2 cartridges
• Lightweight 1-pound build reduces arm fatigue during target practice

Cons

• Included 100 BB count and two CO2 cylinders run out quickly
• Magazine capacity and rail specifications are not detailed in the listing

8

Umarex XBG .177 Caliber BB Gun Air Pistol , Black

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  8.4
• Brand
  Umarex

Key specs1

Frame and Caliber

Features a compact tactical profile designed for .177 steel BBs. Verify magazine capacity and rail compatibility before ordering.

Pros & cons32

Pros

• Compact black frame designed for maneuverable backyard plinking
• Dedicated .177 caliber steel BB chambering for cost-effective shooting
• Streamlined profile fits standard holster styles easily

Cons

• Velocity rating and exact magazine capacity must be verified on the product page
• Blowback action and CO2 consumption rates are unstated in the listing

9

Umarex SA10 .177 Caliber Pellet or BB Gun Air Pistol,

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  7.8
• Brand
  Umarex

Key specs2

Dual Ammo System

Fires both .177 pellets and steel BBs using three included 8-shot rotary clips that load into the drop-out CO2 magazine.

Action Type

Realistic blowback

Pros & cons42

Pros

• Dual-ammo design fires both .177 caliber pellets and steel BBs
• Realistic blowback action simulates slide cycling with each pull
• Includes a drop-out CO2 magazine and three 8-shot rotary clips
• Integrated accessory rail and tactical sights support add-on lights

Cons

• Blowback action consumes 12-gram CO2 faster than non-blowback models
• CO2 cartridges are not included in the package

10

Umarex DX17 .177 Caliber BB Gun Air Pistol - Includes

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  7.4
• Brand
  Umarex

Key specs2

Included Ammunition

200 steel BBs included

Specification Verification

Check the product listing to confirm whether this model uses CO2 or spring power, and verify whether it features accessory rails.

Pros & cons32

Pros

• Comes bundled with 200 steel BBs for immediate target practice
• Standard .177 caliber compatibility allows use with common steel BB ammo
• Lightweight design makes it accessible for casual plinking sessions

Cons

• Operating mechanism and power source are unstated in the product data
• Velocity and sighting specs must be confirmed on the product page

Last update on 2026-10-08 / Affiliate links / Images, Product Titles, and Product Highlights from Amazon Product Advertising API

Does a tactical .177 CO2 airgun take standard 12-gram CO2 cartridges?

Yes, standard 12-gram CO2 cartridges power most tactical .177 airguns, including models like the Glock 19 Gen3. Propellant cartridges are rarely included in the box with the gun itself, so you need to keep a supply ready for your plinking sessions. Clean 12-gram capsules protect internal valve seats, whereas dirty gas can deposit oil and debris inside the firing assembly. Always verify whether your replica requires a screw-tension base or an internal tool to puncture the capsule properly.

How do you prevent CO2 valves from leaking over time?

Using clean, high-grade CO2 cartridges keeps valves free from buildup that breaks down airtight seals. Cartridges engineered to keep valves clean prevent the grime deposits that cause chronic pressure leaks and wasted gas. Do not store your airgun with a pierced, pressurized cylinder clamped inside the grip, because constant pressure crushes the valve seal. Check the manufacturer guidelines on seal lubrication to ensure long-term pressure retention between shooting sessions.

Will .177 steel BBs jam the magazine or damage the smoothbore barrel?

Substandard or irregular ammo will snag, but blemish-free steel BBs feed smoothly through magazine channels without hang-ups. Using precision zinc-plated .177 caliber (4.5 mm) projectiles, such as 5.1-grain steel BBs from Air Venturi, shields against surface corrosion and ensures reliable chambering. Rough, unplated BBs can shed flakes and bind follower springs. Inspect your ammo container for an easy-pour spout to keep BBs clean and dirt-free before they enter the magazine.

Which Umarex airgun models offer realistic blowback action?

The Umarex SA10 delivers realistic blowback action with a cycling slide on every shot, mimicking the operation of a live firearm. You can also look at dedicated replica platforms like the Glock 17 blowback air pistol for authentic slide movement and handling. If you want to compare other authentic options, check our overview of the best CO2 BB gun models suited for backyard target practice.

Can you shoot both pellets and steel BBs in the same CO2 replica?

You can shoot both only if the airgun is explicitly designated as dual ammo. The Umarex SA10 air pistol is built with a dual-ammo system that safely fires either .177 caliber steel BBs or .177 caliber pellets. Standard BB pistols like the 15-shot Glock 19 Gen3 accept only steel BBs, and loading lead pellets into a BB-only magazine will cause severe jams. Always check the part number and ammo listing on the packaging before swapping projectile types.

How do you verify spare magazine compatibility for a tactical replica?

Check the exact model name, generation, and manufacturer part number on your airgun before ordering replacement magazines. For instance, the Umarex Glock 17 blowback air pistol requires a dedicated Gen3 spare magazine to lock into the frame and align the CO2 port correctly. Mismatched magazines will not seat properly in the grip and can lead to feeding failures. Confirming exact magazine part numbers is just as essential when shopping for a tactical air rifle setup to avoid wasting money on unusable gear.