The Umarex TDP45 4.5mm CO₂ BB Air Pistol (Model 5.8180) is a compact and user-friendly airgun designed for recreational shooting and target practice. Inspired by modern tactical pistols, it offers simple operation, lightweight construction, and dependable performance.

Powered by a 12-gram CO₂ cartridge, the pistol fires 4.5mm (.177) steel BBs with a muzzle velocity of around 120 m/s (394 fps), providing reliable power for plinking and training sessions.

The pistol features a 19-round detachable magazine, allowing quick follow-up shots and convenient reloads. The CO₂ capsule is housed in the magazine, making replacement fast and simple.

A double-action-only trigger system enables rapid firing without the need to cock the pistol manually. The pistol also includes a manual safety to prevent accidental discharge.

Constructed primarily from durable polymer with metal internal components, the TDP45 is lightweight yet robust. The pistol includes a Picatinny accessory rail, allowing shooters to mount tactical lights or laser sights.

With its ergonomic grip, easy handling, and dependable CO₂ performance, the Umarex TDP45 is an excellent choice for beginners, recreational shooters, and airgun enthusiasts looking for an affordable and reliable BB pistol.

Key Features

• 4.5mm (.177) steel BB air pistol
• Powered by 12g CO₂ cartridge
• 19-round detachable magazine
• Double-action-only trigger system
• Semi-automatic firing action
• Lightweight polymer frame construction
• Picatinny accessory rail for lights or lasers
• Manual safety for secure handling
• Compact and ergonomic grip design
• Ideal for target practice and recreational shooting

Specifications

Brand: Umarex
Model: TDP45
Model Number: 5.8180
Calibre: 4.5mm (.177) BB
Ammunition: Steel BBs
Power Source: 1 × 12g CO₂ cartridge
Magazine Capacity: 19 rounds
Velocity: 120 m/s (≈394 fps)
Energy: < 3.0 Joules
Trigger: Double Action Only
Shot Capacity: approx. 190 shots per CO₂ cartridge
Overall Length: approx. 165–195 mm
Weight: approx. 300–455 g
Construction: Polymer frame with metal internal components
Rail: Picatinny accessory rail