Umarex UX SPA 100 Grey .177 (4.5mm) Spring Air Pistol – Break Barrel <3 Joule (2.4391)

The Umarex UX SPA 100 (Model 2.4391) is a spring-powered break-barrel air pistol built for shooters who want improved accuracy and power while staying within safe recreational limits.

Chambered in 4.5mm (.177) pellets, this air pistol uses a rifled barrel to stabilise shots and deliver consistent accuracy. The classic break-barrel cocking system ensures simple operation without the need for CO₂ or compressed air—making it reliable and cost-effective.

With a velocity of up to 100 m/s (328 fps) and energy below 3 joules, the SPA 100 offers noticeably stronger performance than basic models, while remaining ideal for target shooting and skill development.

Safety is a major focus, featuring a dual safety system with both a beavertail grip safety and sliding manual safety, helping prevent accidental discharge.

The lightweight polymer frame with metal internals, combined with a long sight radius, provides durability and improved aiming control—making this an excellent choice for beginners progressing into more serious shooting.

KEY FEATURES

• Spring-powered break-barrel system – no gas or CO₂ required

• Rifled barrel for improved accuracy and pellet stability

• Velocity up to 100 m/s (328 fps)

• Energy < 3 Joules – safe, recreational shooting

• Dual safety system (grip + sliding safety)

• Single-shot precision loading system

• Lightweight polymer body with metal internals

• Long sight radius for better aiming control

SPECIFICATIONS

• Brand: Umarex

• Model: UX SPA 100 (2.4391)

• Calibre: 4.5 mm (.177) Pellet

• Power Source: Spring-operated (break-barrel)

• Velocity: Up to 100 m/s (328 fps)

• Energy: < 3.0 Joules

• Action: Single-shot

• Trigger: Single-stage

• Safety:

  • Beavertail grip safety

  • Sliding manual safety

• Length: 425 mm

• Weight: 806 g

• Construction: Polymer body with metal barrel/internal components

• Barrel Type: Rifled