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CO2 Air Rifles

Heckler & Koch HK416 A5 Airgun 4,5mm

8x

This model is powered by two 12g CO2 cartridges. The 4.5mm steel BBs are loaded into a 36 shot chamber through a reservoir that holds up to 600 rounds. These can also be fired in 6-round bursts using the Blowback system, with a muzzle energy of 3J. The airgun is equipped with four 22mm rails, ambidextrous safety, length-adjustable stock, and a rugged grip. The internal construction is made of zinc-aluminum alloy and then covered by durable polymer housing.
More Info

3 pcs in stock,
Estimated Delivery: July 9 - 13.

Shipping price from $ 33.0 Delivery Options

$ 153.6

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Caliber:
4,5 mm / .177
Ammunition:
Steel BBs
Velocity:
130 m/s
Muzzle Energy:
3 J

Show More Specs

Warranty:
24 Months
Manufacturer:
Umarex
EAN:
4000844774415
Item ID:
5.8405X

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Experts on Airguns and Archery

PRODUCT DESCRIPTION

This airgun, titled Umarex HK416 A5, is a faithful reproduction of the fifth generation firearm of the same name produced by Heckler & Koch.

The HK 416 A5 is powered by two 12g CO2 cartridges inserted into the magazine. However, the projectiles are not housed in there. The projectile chamber is located in the forearm and can hold 36 steel 4.5mm BBs.

There is also a high capacity reservoir above the chamber that can hold up to 600 rounds, which are transferred to the bottom chamber by moving the concealed loading handle on the left side and tilting the weapon backwards. Loading the 36 rounds into the chamber thus takes only a few seconds.

The airgun can fire projectiles from the steel barrel with a muzzle velocity of 3J, so it is mostly suitable for plinking and recreational shooting and the 6-round burst mode using the Blowback system makes the shooting even more fun.

There is a total of four 22mm Weaver/Picatinny rails available for mounting accessories, and the top rail is fitted with collapsible sights right from the factory. The safety, which also serves as a fire mode selector, is ambidextrous, the grip is rugged on the sides, and the stock is length-adjustable in 5 positions.

The inner construction of the gun is made of zinc-aluminum alloy and then covered by durable polymer housing reducing the overall weight to 1800g.

Package contents

  • Heckler & Koch HK416 A5 Airgun

Downloadable Files

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Videos (2)

Umarex Heckler & Koch HK416 A5

Umarex Heckler & Koch HK416 A5

Umarex Heckler & Koch HK416 A5

Umarex Heckler & Koch HK416 A5

Parameters

Manufacturer:
Umarex
Caliber:
4,5 mm / .177
Ammunition:
Steel BBs
Number of Shots:
370
Velocity:
130 m/s
Muzzle Energy: ?
3 J
Weight:
1800 g
Overall Length:
800 mm
Barrel Length:
300 mm
Iron Sights:
Yes
Mounting Rail Type:
22 mm
Blowback:
Yes
Magazine Capacity:
36
Powerplant: ?
CO2 Cartridges
Safety:
Yes
Colour:
Black
Warranty:
24 Months

Customer Reviews (8)

4.4

8× rated

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By submitting your review, you are agreeing to our review guidelines. It will be published once we make sure it corresponds with our terms and conditions.

Pavel

Verified customer, from balistas.cz 13.04.2026

Machine translation

  • Nice fun for the garden
  • The reservoir wants a grip, then to be “poured” in a few seconds
  • On 2 cartridges, 5 magazines OK
  • Without sights, individually at cans TOP
  • The dose is cool, I imagine that maybe for apples?
  • Nice toy, entertaining.
  • The little balls and bombs disappear lightning fast

Was this review helpful? No (0)

Zed

Verified customer, from balistas.cz 16.03.2026

Machine translation

  • Faithful copy
  • Stack size (36), respectively nonsense of balls in the main stack
  • Speed of charging the magazine from one to another
  • Fairly accurate overall
  • The BBs in the main magazine rattle with every movement. So on one hand, the advantage is having a bunch of BBs available, but that rattling is really annoying.
  • Consumption of cartridges, because the balls disappear in doses :))
  • It could be full auto
  • The balls bounce off firmly. Highly recommend goggles!

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IVAYLO GETSOV

Verified customer, from balistas.shop 16.01.2026

  • Funny, relatively accurate

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Th.

Verified customer, from balistas.shop 12.10.2025

funny stuff / suitable for initial full-auto shooting training

  • value for money
  • cheap but functional
  • painful magazine noize in movement

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Jan

Verified customer, from balistas.cz 14.03.2024

Machine translation

Simple air rifle for shooting cans and targets in the backyard. Fun to shoot. Accuracy isn't great, it's only for steel BBs.

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Robert

Verified customer, from balistas.cz 25.06.2023

Machine translation

  • Super charging

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Jaroslav Čejka

Verified customer, from balistas.cz 07.08.2025

Machine translation

nice design, short burst shooting super. Unfortunately, I have complained twice about the same defect

Was this review helpful? No (2)

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