Heckler&Koch - HK416 A5 4.5 mm CO2 BB semi air rifle
Heckler & Koch HK416 A5 4.5 mm BB CO₂
A faithful replica of the assault rifle
Heckler & Koch HK416 A5 4.5 mm BB is a windcheater powered by capsules CO₂, which is a realistic replica of an assault carbine used m.in. via JW 4101 and elite special units around the world. The model was designed with the following in mind recreational shooting, offering high functionality and military character.
Precise and functional design
The carbine is equipped with four 22 mm Picatinny rails, which allow the installation of additional accessories, such as collimator, flashlight, vertical grip or laser sight.
As with the combat version, the air rifle has a folding sighting instruments, which, when fitted with optics, can act as a spare instruments.
Adjustable AR-15 type flask blocked in 5 items, with rubber foot and attachment to the carrying belt, allows you to adjust the length of the carbine to the height and build of the shooter. The barrel ends in a2 standard flame suppressor (bird cage), which further emphasizes the realistic appearance of the replica.
CO₂ power and realism of operation
The realism of the design is underscored by working manipulators such as double-sided fire selector (which also serves as a fuse) and magazine latch.
The carbine is powered by two capsules CO₂ 12 g, placed in a magazine housing 36 steel BB 4.5 mm balls. The shot achieves initial speed approx. 130 m/s (436 fps), which ensures good effectiveness on medium recreational distances.
From one set of CO₂ capsules, you can give up to up to 370 shots with an even speed, which makes the windmill efficient and economical in gas consumption.
Attention: carbine shoots single fire only.
Key features
Bed with four Picatinny rails
Double-sided fire selector / fuse
Steel inner barrel
AR-15 type flask adjustable in 5 positions
Folding targeting instruments
Removable magazine for 36 BBs
Technical data
Caliber: 4.5 mm
Type of ammunition: BB
Magazine capacity: 36 BB
Class of accuracy: recreational
Power supply: CO₂ 12 g
Number of power shots: up to 370
Number of mounting rails: 4
Rail type: Picatinny 22 mm
Overall length: 800 mm
Mass: 1800 g
Fuse: yes
Permit required: not
Manufacturer information
Manufacturer: Umarex, Germany
EAN: 4000844774392
Supplier Symbol: 5.8405
Heckler & Koch HK416 A5 4.5 mm BB CO₂ is an excellent choice for those looking for realistic replica, solid workmanship and a lot of fun for recreational shooting.
Danger of bodily harm.
Keep weapons out of the reach of children or protect them from falling into the wrong hands. Shooting is allowed for people over the age of 18 and only in a secured area beyond which the projectile cannot escape.
Treat each weapon as if it were loaded. Weapons should always be secured when loading so that a shot cannot be accidentally fired. Always keep your finger out of the trigger holster and place it on the trigger only with the aim of firing. Use only the cartridges provided for this weapon. Always point the barrel in a safe direction. When shooting in your own home and in a protected area, always follow the national laws regarding the use of weapons. Pay attention to the dangerous area of the projectile. Load only immediately before shooting. Never point a gun at people or animals. Avoid ricochets. Never shoot toward smooth, hard surfaces or toward water surfaces. Before firing, make sure the target and surrounding area are safe. Always check that the weapon is unloaded when it is transported or transferred to another person. Ensure that you are also able to control the direction of the barrel discharge if you trip or fall. For safety reasons, goggles should be worn while shooting. Weapons should always be kept in a safe place, unloaded, sealed from access by unauthorized persons (untrained persons, children) and separately from ammunition. These weapons may be handed over with the instruction manual only to persons who are thoroughly familiar with this type of weapon, observing the regulations on the use of weapons for the particular country. Any modifications or repairs to the weapon must be carried out only by specialized companies or by a gunsmith. Other people are only allowed to hand over unloaded weapons.
Windmills are advanced devices designed for recreational and sports purposes that require special care during use. These are precision devices that can be dangerous if used irresponsibly.
Safety instructions and warnings
1. A windmill is not a toy. Improper or careless use can cause serious injury or death. Treat it with the same care as firearms. 2. Always act as if the wind gun is loaded. 3. Follow the safety rules and keep the instruction manual in a safe place. 4. Comply with all applicable laws regarding the use of windmills. 5. Don't display a windmill in public and don't make it look like a firearm. 6.Wear safety glasses when shooting. 7. Never aim at people, animals or objects you do not intend to destroy. 8. Store and transport your windbreaker safely and unloaded. 9. Use the right type and caliber of shotgun shells. 10. Place the cul-de-sac in a safe place to avoid ricochets. 11. Do not interfere with the design of the windmill - have repairs done at an authorized service center. 12. Keep the windbreaker out of the reach of children.
Maintenance and care
Use only silicone or petroleum-free lubricants for wind turbines. Avoid using flammable substances in the compression chamber or lock to avoid the diesel effect. Perform regular inspections and keep your windbreaker clean with the right cleaning products























