7 Umarex Uzi Full Auto of 2026 With Authentic Blowback

1

Umarex Legends M1A1 Blowback Automatic .177 Caliber BB Gun Air

View on Amazon

• ARS Mark

  ARS Mark is a ranking system developed by bestairriflescopes.com. ARS Mark has no relationship or impact from any manufacturers or sales agent websites. Learn more

  9.2
• Brand
  Umarex

Key specs2

Firing Action

Delivers automatic rapid-fire operation paired with realistic blowback cycling for fans of vintage submachine platforms.

Magazine and CO2 Requirements

Specific round capacity and CO2 chamber details are omitted from specifications and require verification prior to purchase.

Pros & cons32

Pros

• Features authentic automatic cycling paired with realistic blowback action
• Authentic submachine replica styling designed for rapid-fire .177 BB target plinking
• Rifle configuration offers shoulder-braced stability during full-auto firing sequences

Cons

• Velocity ratings and specific magazine capacities are unstated and require verification
• CO2 cartridge requirements and spare magazine part numbers must be confirmed before buying

2

Umarex Legends MP Blowback All Metal Automatic .177 Caliber BB

View on Amazon

• ARS Mark

  ARS Mark is a ranking system developed by bestairriflescopes.com. ARS Mark has no relationship or impact from any manufacturers or sales agent websites. Learn more

  9.0
• Brand
  Umarex

Key specs2

Receiver Build Material

All-metal construction

Firing Dynamics

Combines an automatic cycling mechanism with realistic blowback recoil on a full-scale metal frame.

Pros & cons32

Pros

• Rugged all-metal exterior construction withstands high-speed mechanical recoil
• Selectable automatic action delivers authentic submachine cycling on steel BBs
• Blowback mechanism simulates realistic bolt movement during target shooting

Cons

• Muzzle velocity and exact magazine round capacity are omitted from listed details
• High-volume automatic firing can quickly deplete CO2 cartridges during prolonged bursts

3

Umarex Legends M712 Blowback Automatic .177 Caliber BB Gun Air

View on Amazon

• ARS Mark

  ARS Mark is a ranking system developed by bestairriflescopes.com. ARS Mark has no relationship or impact from any manufacturers or sales agent websites. Learn more

  8.8
• Brand
  Umarex

Key specs3

Peak Velocity

Up to 360 fps

Sighting Mechanism

Equipped with a fixed front blade and an elevation-adjustable rear sight for dialing in vertical point of impact.

Magazine Compatibility

Spare part number 2251808

Pros & cons52

Pros

• Switchable semi-auto and full-auto shooting modes offer complete fire control
• Realistic all-metal construction delivers a substantial 3.75-pound heft in hand
• Shoots .177 steel BBs at listed velocities up to 360 fps
• Elevation-adjustable rear sight allows tailored vertical target alignment
• Compatible with spare magazine part number 2251808 for fast field reloads

Cons

• Heavy 3.75-pound frame may cause wrist fatigue during extended one-handed shooting
• Rapid full-auto firing through the 18-shot magazine cools 12g CO2 cartridges quickly

4

Umarex mens Beretta M92 A1 Blowback Full-Auto .177 Caliber BB

View on Amazon

• ARS Mark

  ARS Mark is a ranking system developed by bestairriflescopes.com. ARS Mark has no relationship or impact from any manufacturers or sales agent websites. Learn more

  8.6
• Brand
  Umarex

Key specs3

Accessory Mounting

Features an integrated Weaver rail under the barrel for attaching lights, lasers, or other tactical gear.

Physical Weight

2.4 pounds

Spare Magazine Reference

Part number 2253019

Pros & cons42

Pros

• Dual semi-auto and full-auto selector switch provides tactical versatility
• Sturdy all-metal build provides authentic blowback recoil impulse
• Integrated Weaver accessory rail allows quick mounting of tactical lights or lasers
• Spare magazine part number 2253019 ensures easy sourcing of extra clips

Cons

• Modest 310 fps velocity rating yields lower projectile speed than comparable models
• Fixed tactical sights offer no windage or elevation adjustments for BB drift

5

Umarex HK Heckler & Koch MP5 K-PDW Semi Automatic .177

View on Amazon

• ARS Mark

  ARS Mark is a ranking system developed by bestairriflescopes.com. ARS Mark has no relationship or impact from any manufacturers or sales agent websites. Learn more

  8.4
• Brand
  Umarex

Key specs2

Operating Action

Operates strictly as a semi-automatic repeater, lacking the selectable full-auto capability found on true automatic replicas.

Specifications Verification

Check manufacturer details to confirm round capacity, CO2 requirements, and velocity before purchase.

Pros & cons32

Pros

• Compact submachine PDW profile offers maneuverable tactical handling
• Semi-automatic repeating mechanism provides disciplined, shot-by-shot target engagement
• Authentic HK MP5 styling delivers realistic tactical aesthetics

Cons

• Operates in semi-automatic mode only without selectable full-auto burst capability
• Key parameters including muzzle velocity and magazine capacity require verification

6

Beretta M9A3 Blowback Full-Auto .177 Caliber BB Gun Air Pistol

View on Amazon

• ARS Mark

  ARS Mark is a ranking system developed by bestairriflescopes.com. ARS Mark has no relationship or impact from any manufacturers or sales agent websites. Learn more

  8.4
• Brand
  Umarex

Key specs3

Holster Compatibility

Engineered to fit standard holsters designed for the firearm M9A3, facilitating tactical draw practice.

Frame Construction

Tough polymer frame

Velocity Rating

Up to 330 fps

Pros & cons52

Pros

• Selectable semi-auto and full-auto firing modes deliver rapid 18-shot bursts
• Tough polymer frame keeps carry weight at a nimble 2.2 pounds
• Shoots .177 steel BBs at velocities reaching up to 330 fps
• Compatible with standard M9A3 holsters for realistic sidearm carry and draws
• Integrated accessory rail supports tactical attachments below the barrel

Cons

• Polymer lower frame offers less heft than all-metal vintage replicas
• Non-adjustable tactical sights cannot compensate for lateral projectile drift

7

Umarex Steel-Strike Automatic .177 Caliber BB Gun Air Rifle, Steel-Strike

View on Amazon

• ARS Mark

  ARS Mark is a ranking system developed by bestairriflescopes.com. ARS Mark has no relationship or impact from any manufacturers or sales agent websites. Learn more

  7.4
• Brand
  Umarex

Key specs2

Model Reference Code

Umarex part number 2252120

Platform Confirmation

Verify operating power source and feeding mechanism on the product page before ordering.

Pros & cons32

Pros

• Dedicated automatic firing mechanism creates high-rate .177 steel BB bursts
• Rifle platform layout provides steady dual-hand positioning on targets
• Distinct tactical rifle format serves as an active automatic plinker

Cons

• Factory specifications leave muzzle velocity and magazine round capacity unstated
• Power source requirements and spare magazine numbers require confirmation

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

Which Umarex tactical models offer genuine full-auto firing modes?

Models like the Umarex Legends M1A1, Legends MP, Legends M712, and Umarex Steel-Strike feature true automatic firing capabilities. In contrast, tactical submachine replicas like the Umarex HK Heckler & Koch MP5 K-PDW operate exclusively in semi-automatic mode. Certain blowback pistols, such as the Beretta M92 A1 and Beretta M9A3, also deliver selectable full-auto operation. You should check the selector switch markings on the receiver or consult a guide to the best tactical air rifle designs to verify automatic settings before buying.

How many shots does a 12-gram CO2 cartridge deliver during full-auto bursts?

Shot count per 12-gram CO2 cartridge varies by model, cycling speed, and ambient temperature. Rapid full-auto bursts exhaust gas significantly faster than deliberate semi-automatic fire because rapid valve cycles drop internal canister temperatures. Umarex recommends using Umarex-brand CO2 cartridges to maintain a reliable seal and preserve valve seating. To determine exact gas efficiency, verify the manufacturer manual or product listing for your specific airgun model.

How can you prevent CO2 freeze-up and gas leaks during rapid fire?

Firing in short, controlled bursts instead of holding down the trigger prevents rapid gas venting and pressure loss. Continuous automatic fire causes extreme cooling inside the valve assembly, which can stiffen rubber seals and cause the cartridge to dump its remaining gas. Using manufacturer-recommended Umarex-brand CO2 ensures proper seating against the puncture stem. Giving the magazine a brief pause between rapid strings allows the internal components to warm back up.

What ammunition and magazine capacity do these automatic airguns use?

These automatic models fire .177 caliber steel BBs from specialized drop-free magazines. Replicas such as the Legends M712, Beretta M92 A1, and Beretta M9A3 utilize an 18-shot magazine design paired with realistic blowback action. Because full-auto operation expends an 18-shot payload in a fraction of a second, checking a detailed CO2 BB gun reference helps you understand how different magazine configurations affect reloading speed.

Why do some tactical airgun replicas only shoot in semi-automatic?

Many tactical replicas mimic military submachine gun exteriors while using dedicated semi-automatic internal mechanisms. The Umarex HK Heckler & Koch MP5 K-PDW, for example, retains the tactical silhouette and folding stock of a personal defense weapon but strictly functions as a semi-automatic .177 caliber BB repeater. Manufacturers often configure these models for single-shot fire to maximize gas efficiency and shot consistency. Always check the operational specifications on the product packaging rather than relying on body style alone.

How do you verify spare magazine compatibility for an automatic airgun?

Locate the exact magazine part number printed in the product documentation before ordering spares. Automatic models rely on distinct magazine housings tailored to their specific frames, such as the 3.75-pound Legends M712 or the 2.4-pound Beretta M92 A1. Matching the exact .177 caliber BB magazine to your replica ensures proper feeding geometry and reliable gas routing through the blowback system.