Air pistol Umarex TDP 45 4.5 mm BB CO2

Umarex TDP-45 4.5 mm BB is a compact air pistol powered by CO2 capsules and featuring a fully polymer construction. The model offers good fitting and finishing of details as well as low weight thanks to its polymer structure. The grip features anti‑slip texturing. The pistol slide is fixed and equipped with a fixed front sight and rear sight. Under the barrel there is a universal 22 mm accessory rail. The air pistol is mainly intended for beginners in pneumatic shooting. 

Features of the Umarex TDP-45 4.5 mm air pistol:

• An affordable model designed for recreational shooting
• Lightweight polymer construction comfortable for youth and women
• Compact design and attractive price relative to quality
• Picatinny rail for mounting accessories such as flashlights or lasers
• Power source: 12 g CO2 capsule placed in the grip
• Trigger mechanism operating in DAO (Double Action Only) mode
• Metal magazine for 19 steel BB's 4.5 mm
• Right‑side adjustable safety blocking the trigger
• Fixed mechanical aiming devices.

Aiming devices and accessory rail

The pistol frame features a 22 mm Picatinny rail that allows mounting additional shooting accessories such as a laser target marker or flashlight. The aiming devices consist of a fixed front sight and rear sight with bright aiming dots. 

Air pistol power supply

The air pistol is powered by a 12 g CO₂ capsule installed in the grip under the grip panel. One branded capsule allows about 80 shots with a consistent velocity of approx. 125 m/s. The number of shots is mainly influenced by air temperature and shooting pace. The pistol has a gas presence indicator located on the rear part of the slide. 

BB magazine

The Umarex TDP45 is equipped with a narrow metal magazine with a capacity of 19 spherical pellets in 4.5 mm caliber. Loading is made easier by a special tab on the follower that allows it to be pulled downward. It is worth noting that spherical BB pellets, unlike Diabolo pellets, do not easily deform even under pressure. Therefore, they can be safely loaded into high‑capacity magazines.

Trigger mechanism

The air pistol uses a DAO trigger mechanism (Double Action Only), allowing shooting exclusively using self‑cocking. The advantage of this solution is simple and intuitive operation, which makes the air pistol ideal for people who are just starting their adventure with pneumatic shooting.

Air pistol safety

During transport or storage, the air pistol can be secured using an external slide safety located on the right side of the frame, just above the finger operating the trigger.