Air pistol H&K Heckler&Koch USP blowback 4.5 mm BB CO2

H&K Heckler&Koch USP Blowback in 4.5 mm BB caliber is an air pistol faithfully reproducing the iconic German semi‑automatic pistol from the Heckler&Koch brand. The construction features solid workmanship with a metal slide and a durable polymer frame. Original manufacturer markings are applied to both elements. The design is powered by a CO2 capsule and allows semi‑automatic shooting. The pistol version is equipped with a strong Blow‑Back slide recoil system.

Features of the Heckler&Koch USP Blowback air pistol:

• Very precise workmanship in terms of fidelity to the firearm original.
• Strong and clearly felt Blow‑Back slide recoil system.
• Solid metal slide and polymer frame.
• Gas‑powered system enabling semi‑automatic shooting.
• Fully functional controls: wing safety, magazine release and slide release.
• Fixed mechanical aiming devices: front sight and rear sight.
• Ergonomically shaped grip that facilitates proper shooting stance.
• Ability to shoot in DA or SA mode thanks to the decocker.

CO2 capsule power

The model is powered by a 12 g CO2 capsule installed in the magazine. Compressed carbon dioxide enables semi‑automatic shooting. A good‑quality CO2 capsule allows approximately 60 consistent shots. The number of shots also depends on air temperature, shooting dynamics and proper maintenance of the construction. It should also be remembered that a pierced CO2 capsule can remain installed for a maximum of 48 hours.

Aiming devices

The model has fixed mechanical aiming devices consisting of a rear sight and front sight with bright dots that help align both elements and make aiming easier.

SA/DA trigger mechanism

The model uses a single/double action trigger mechanism (DA/SA), characterized by a short trigger travel before the shot and relatively low trigger resistance. The advantage of this solution is mainly the simple construction and the ability to fire precise shots without the risk of pulling the shot off target. When the hammer is lowered (DA), the trigger has a longer travel and greater resistance, but the shooter does not need to manually cock the hammer each time.

Steel BB magazine

The removable magazine located in the grip holds 18 steel BBs in 4.5 mm caliber, which are best suited for recreational shooting at reactive targets, cans, bottles, etc. It is equipped with a follower tab that facilitates loading.

Safety features in the USP air pistol

During transport or storage, the trigger mechanism can be locked using a wing safety located on the left side of the frame. It also functions as a decocker.