10 Umarex Mp5 Full Auto of 2026 For Rapid Fire Plinking

1

Umarex Legends M1A1 Blowback Automatic .177 Caliber BB Gun Air

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• ARS Mark

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  9.2
• Brand
  Umarex

Key specs2

Action Mechanism

Automatic blowback

Ammunition Format

Chambered for standard .177 caliber steel BBs rather than 6mm airsoft plastic rounds.

Pros & cons32

Pros

• Delivers automatic firing capability with realistic blowback action
• Fires .177 caliber steel BBs for rapid plinking
• Authentic submachine gun styling offers an alternative to tactical MP5 platforms

Cons

• Muzzle velocity and exact magazine capacity are unstated in the listing
• CO2 consumption rate during continuous automatic fire requires verification

2

Umarex Legends MP Blowback All Metal Automatic .177 Caliber BB

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  8.8
• Brand
  Umarex

Key specs2

Action Mechanism

Automatic blowback

Receiver Build

Features all-metal construction for durable plinking sessions and realistic weight handling.

Pros & cons32

Pros

• True automatic firing capability provides rapid steel BB action
• Durable all metal construction gives realistic heft and balance
• Blowback cycling enhances the feel of full-auto shooting

Cons

• Does not provide modern MP5 styling or tactical accessory rails
• Specific muzzle velocity and shot count per CO2 set are not listed

3

Umarex Legends M712 Blowback Automatic .177 Caliber BB Gun Air

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  8.8
• Brand
  Umarex

Key specs2

Firing Modes

Semi-auto and full-auto

Weight and Handling

At 3.75 pounds with an all-metal build, this pistol provides substantial heft resembling a classic machine pistol.

Pros & cons43

Pros

• Selectable semi-auto and full-auto shooting modes for flexible plinking
• Shoots .177 caliber steel BBs at speeds up to 360 fps
• Durable all-metal build with realistic cycling blowback
• Elevation adjustable rear sight assists target alignment

Cons

• 18-shot magazine empties quickly in full-auto mode
• Substantial 3.75-pound pistol weight may tire one-handed shooters
• 12-gram CO2 cartridge is not included and cools down during rapid fire

4

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

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  8.6
• Brand
  Umarex

Key specs2

Accessory Mounting

Integrated Weaver rail

Muzzle Velocity

Listed up to 310 fps using standard .177 steel BBs powered by a single 12-gram CO2 cartridge.

Pros & cons42

Pros

• Switchable semi-auto and full-auto firing modes
• Solid all-metal construction with realistic blowback cycling
• Integrated Weaver rail supports weapon lights or tactical accessories
• Reaches muzzle speeds up to 310 fps with .177 steel BBs

Cons

• Full-auto bursts deplete the 18-shot magazine in seconds
• Requires separate purchase of 12-gram CO2 cartridges

5

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

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  8.4
• Brand
  Umarex

Key specs2

Trigger Action

Semi-automatic only

Ammunition Format

Built for .177 steel BBs, offering authentic MP5 aesthetics but restricted to semi-auto trigger pulls.

Pros & cons33

Pros

• Authentic Heckler & Koch MP5 K-PDW tactical design
• Fires common .177 caliber steel BBs for target practice
• Folding stock design provides compact handling

Cons

• Semi-automatic only and lacks continuous full-auto fire
• Muzzle velocity and exact magazine specs are unstated in the listing
• CO2 power plant requires careful monitoring to prevent velocity drop

6

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

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  8.4
• Brand
  Umarex

Key specs2

Frame Construction

Tough polymer frame

Holster Compatibility

Designed to match M9A3 dimensions, fitting standard holsters made for the firearm platform.

Pros & cons42

Pros

• Supports both semi-auto and full-auto firing modes
• Muzzle velocities reach up to 330 fps with .177 steel BBs
• Integrated rail accommodates tactical lights and laser sights
• Sized to fit standard holsters designed for the M9A3 firearm

Cons

• 18-round capacity requires frequent reloading when firing full auto
• Tough polymer frame rather than an all-metal slide and frame build

7

HK Heckler & Koch MP5 SD6 AEG Automatic 6mm BB

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  8.2
• Brand
  Umarex

Key specs2

Power Source

Electric AEG battery

Caliber Distinction

Fires 6mm plastic airsoft BBs, providing genuine continuous automatic fire unlike .177 steel BB MP5 models.

Pros & cons32

Pros

• Authentic MP5 SD6 submachine gun configuration
• True automatic firing capability via an electric AEG powerplant
• Avoids CO2 cooldown issues by using a rechargeable battery system

Cons

• Fires 6mm plastic airsoft BBs rather than .177 steel BBs
• Battery, charger, and velocity ratings must be verified before purchase

8

H&K MP5 K-PDW .177

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  8.2
• Brand
  Umarex

Key specs2

Trigger Action

Semi-automatic

Platform Verification

Verify magazine capacity and operating velocity on the product page before purchasing this .177 model.

Pros & cons32

Pros

• Genuine Heckler & Koch MP5 K-PDW styling in a black finish
• Uses readily available .177 caliber steel BB ammunition
• Compact PDW profile suits tactical target plinking drills

Cons

• Semi-auto action only with no full-auto capability
• Listing omits key specifications including velocity, capacity, and dimensions

9

Umarex Steel-Storm .177 Caliber BB Gun Air Pistol , Black

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  8.2
• Brand
  Umarex

Key specs2

Burst Fire Capability

6-round burst mode

BB Capacity

• 30-shot firing capacity in the active magazine
• 300-round built-in reserve BB reservoir
• Dual 12g CO2 magazine chamber

Pros & cons52

Pros

• Features single-shot mode and a rapid 6-round burst mode
• High muzzle velocity reaching up to 430 fps with .177 steel BBs
• Dual 12-gram CO2 setup provides more stable gas volume
• Massive 300-round reserve reservoir keeps the 30-shot mag supplied
• Built-in flip-up sights facilitate fast target acquisition

Cons

• 6-round burst is not fully continuous automatic firing
• Weighs 3.51 pounds and has a bulky submachine layout

10

Umarex Elite Force HK Heckler & Koch MP5 A5 Elite

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  7.2
• Brand
  Umarex

Key specs2

Caliber Distinction

6mm plastic airsoft BB

Hop-Up and Range

Equipped with an adjustable hop-up unit and a full metal gearbox to optimize 6mm BB flight and durability.

Pros & cons52

Pros

• Fully licensed HK replica with etched trademarks and unique serial number
• Robust full metal gearbox paired with durable nylon polymer stock
• True full-auto and semi-auto shooting modes at up to 375 fps
• High-capacity 200-round magazine included for sustained fire
• Adjustable hop-up optimizes BB trajectory and target range

Cons

• Fires 6mm plastic airsoft BBs instead of .177 steel BBs
• Battery and charger are not listed as included in the box

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

Does the Umarex .177 caliber MP5 have a full-auto firing mode?

No. The Umarex HK Heckler & Koch MP5 K-PDW .177 caliber BB gun is strictly a semi-automatic air rifle. While it features realistic handling and folding stock mechanics, the trigger mechanism fires a single steel BB with each separate pull. Shooters looking for continuous cyclic fire must look toward licensed 6mm airsoft platforms or alternative full-auto .177 airguns.

Which Umarex MP5 models actually fire in full auto?

True full-auto fire in the licensed MP5 lineup is exclusive to 6mm airsoft electric guns (AEGs). Models like the HK Heckler & Koch MP5 SD6 AEG and the Umarex Elite Force HK Heckler & Koch MP5 A5 Elite Series AEG offer dedicated automatic firing modes. The MP5 A5 Elite Series features a full metal gearbox, a nylon polymer stock, etched trademarks, and authentic fire selector markings for rapid cyclic operation.

What are the options if you want full-auto fire with .177 steel BBs?

If you prefer shooting .177 steel BBs at a high rate of fire, Umarex offers several automatic replicas outside the MP5 platform. The Umarex Legends MP and Legends M1A1 provide blowback automatic fire in .177 caliber. Another choice is the Umarex Steel-Storm, which uses two 12-gram CO2 cartridges housed in a drop-out magazine and features a 30-shot capacity with a 300-round reserve reservoir. You can compare other rapid-fire options in our guide to choosing a CO2 BB gun for target practice.

What is the difference between an MP5 AEG and a CO2 BB gun?

The difference comes down to the ammunition type and the internal drive system. Full-auto MP5 replicas are battery-powered AEGs engineered with metal gearboxes to fire 6mm plastic BBs without freezing up. Semi-automatic .177 MP5 rifles and rapid-fire BB pistols run on 12-gram CO2 cartridges that feed steel shot. CO2 creates sharp recoil simulation, but rapid strings cool the valve quickly, leading to temporary velocity loss during sustained shooting.

How do you verify an MP5 replica's fire modes before buying?

Check the caliber rating and the specific firing mode listed on the packaging or technical specifications sheet. Any model marked for .177 caliber (4.5mm) steel BBs under the MP5 nameplate operates only in semi-automatic. If you want full-auto functionality, confirm that the model specifies 6mm plastic BBs and lists an AEG gearbox or select-fire operation on the receiver markings.

Can you convert a semi-automatic Umarex MP5 K-PDW to full auto?

No. The internal valve system, sear, and trigger assembly on the Umarex HK MP5 K-PDW .177 BB rifle are built specifically for semi-automatic fire. Attempting to alter or file the internal components will damage the airgun, void your warranty, and create unsafe feeding failures. If you require full-auto capability for tactical drills or rapid plinking, choose a dedicated factory-built tactical air rifle or an authentic 6mm MP5 AEG instead.