The Umarex XBG 4.5mm CO₂ BB Air Pistol (Model 5.8173) is a compact and easy-to-use airgun designed for recreational shooting and target practice. Built with a lightweight polymer frame and ergonomic grip, the pistol is comfortable to handle and suitable for beginners and experienced shooters alike.

Powered by a standard 12-gram CO₂ cartridge, the XBG fires 4.5mm (.177) steel BBs with a muzzle velocity of approximately 120 m/s (394 fps), delivering reliable power and consistent performance.

The pistol features a 19-round integrated magazine, allowing rapid follow-up shots without frequent reloading. Its double-action trigger system provides smooth firing, while the manual sliding safety ensures safe handling during use.

Designed for convenience, the CO₂ capsule is housed inside the grip and can provide up to approximately 120 shots per cartridge, making the pistol efficient for longer shooting sessions.

The Umarex XBG also includes a Picatinny accessory rail beneath the barrel for attaching lights or laser sights. With its durable construction, simple operation, and dependable performance, the XBG is an excellent choice for plinking, training, and recreational shooting.

Key Features

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

Specifications

Brand: Umarex
Model: XBG
Model Number: 5.8173
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: up to 3 Joules
Trigger: Double Action Only
Shot Capacity: approx. 120 shots per CO₂ cartridge
Overall Length: 171 mm
Barrel Length: 108 mm
Weight: 400 g
Construction: Polymer frame
Rail: Picatinny accessory rail