Gamo G-Magnum 1250 4.5mm Air Rifle

The European heavyweight of the air gun world has surely answered that criteria by creating the new Gamo G-Magnum 1250 break barrel air rifle, which comes with Gamo’s latest thumbhole ambidextrous synthetic stock.

Current product details

Gamo’s G-Magnum 1250 is our most powerful, accurate and ergonomically designed air rifle. Spurred on by the persistent market demand for increased power at an affordable price, Gamo’s intentions have always been to satisfy the broadest range of consumers for whom power and price will remain pivotal factors in their buying decision. The European heavyweight of the air gun world has surely answered that criteria by creating the new Gamo G-Magnum 1250 break barrel air rifle, which comes with Gamo’s latest thumbhole ambidextrous synthetic stock.

FEATURES

• CAT Two stage custom action trigger
• SWA Shock wave absorber
• RRR Recoil reducing rail
• Synthetic All-weather Stock
• Ambidextrous

SPECIFICATIONS

Weight: 3.2 Kg
Caliber: 4.5mm (.177)
Power: (Joules) 36j-45j
Velocity: 470 m/s (1542 fps)
Action: Single Cocking System
Silencer: Gamo Standard Rifled Steel Barrel
Powerplant: Spring Piston System
Trigger: CAT Two Stage Custom Action Trigger
Stock: Automotive Grade Glass Filled Nylon All-weather Stock
Checkering: Non-slip Texture On Grip And Forearm
Recoil Pad: SWA Shock Wave Absorber
Trigger Lock: Manual Safety And Automatic Cocking Safety System
Rail: RRR Recoil Reducing Rail
Ammunition: Performance Lead Pellets & PBA Pellets

How to choose this air rifle

• Confirm the exact calibre, power system and loading method stated in the current product details.
• Check whether a scope and mounts are explicitly included; do not assume accessories from the product image alone.
• Compare overall fit, weight, cocking or charging requirements and magazine compatibility with the intended lawful use.

Responsible use: This is not a toy. Follow the product manual, applicable South African law, secure-storage requirements and safe airgun handling at an appropriate range with a reliable backstop.

Compare the full Gamo air-rifle range or use the South African air-rifle buying guide.

Buy with confidence: Gamo.co.za is an authorized online Gamo dealer and South Africa’s dedicated Gamo airgun destination.

Reviewed by the Gamo South Africa product team on 26 August 2026.