Heckler&Koch - H&K USP blowback 4.5 mm BB CO2 air pistol
Heckler & Koch USP Blowback 4.5 mm BB CO₂ Windshield
H&K USP Blowback 4.5 mm BB is a pneumatic replica of the iconic German Heckler & Koch self-revolving pistol, designed for users who expect maximum realism. The model is distinguished by metal lock, robust polymer backbone and licensed manufacturer's markings.
The biggest advantage of this version is powerful Blow-Back System, which simulates the movement of the breech during firing, providing a realistic feel similar to the operation of a firearm.
Realistic design and functionality
The gun was designed with great attention to detail, maintaining the proportions and ergonomics of the flammable prototype. Proper balance and profiled handle guarantee a secure grip and high comfort of use.
Features of the Heckler & Koch USP Blowback air pistol
Very faithful reproduction of the original.
Strong Blow-Back System with a pronounced lock recoil.
Metal lock and durable polymer frame.
CO₂ power supply for self-repeat shooting.
Fully functional keypads: fuse, magazine and lock release.
Fixed aiming instruments: a bow tie and a pinniped.
Ergonomic grip for improved gun control.
DA/SA trigger mechanism with decocker.
Mounting rail for flashlight or laser installation.
Power supply CO₂
The model uses 12-gram CO₂ capsule, mounted in the magazine. One capsule allows you to cast about 50-60 shots, depending on the ambient temperature, rate of fire and technical condition of the replica.
A punctured capsule can be left in the magazine for a maximum of 48 hours. Blow-Back system provides realism at the expense of slightly higher gas consumption compared to the non-jetted version.
Targeting instruments
The gun is equipped with fixed mechanical instruments with bright dots that make it easier to quickly align the bow tie with the sights and improve the comfort of aiming under recreational conditions.
SA/DA trigger mechanism
The mechanism used DA/SA allows shooting both with a self-draw (DA) and a short, light trigger when the cock is tightened (SA).
Mode SA provides short trigger path and high precision.
Mode DA offers more resistance and a longer stroke, without the need to manually tighten the cock.
This solution combines safety with high versatility of use.
Steel BB magazine
Magazine housing 18 steel BB 4.5 mm balls is extended from the handle. The tooth on the pot facilitates quick loading. BB ammunition is ideal for recreational shooting at reactive targets, cans or bottles.
Security
The model has wing fuse, which also functions as decocker, allowing the cock to be lowered safely without firing a shot. This solution improves safety when carrying and storing the replica.
Technical data
Caliber
4.5 mm
Class of accuracy
recreational
Magazine
is
Magazine capacity
18 pcs.
Initial velocity
105 m/s
Trigger type
DA/SA
Type of shot
BB
Permit required
not
Color
black
Housing material
polymer
Number of mounting rails
1
Possibility to mount
laser sight, flashlight
Overall length
205 mm
Barrel length
100 mm
Mass
976 g
Number of fuses
1
Number of shots from the power unit
50
Power supply type
CO₂ 12 g
Warranty period
24 months
Manufacturer
Heckler & Koch / Umarex, Germany
EAN
4000844627605
Supplier Symbol
5.8346
The H&K USP Blowback 4.5mm BB air rifle is an excellent choice for people who expect to maximum realism, robust construction and dynamic shooting experience, both in recreational shooting and training of manual skills.
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





















