Gamo Whisper IGT 4.5mm Air Rifle

The Whisper system is an integrated sound-moderator on the muzzle of the barrel that provides up to 52% noise reduction compared with a standard airgun.

Current product details

The Gamo Whisper IGT 4.5mm Air Rifle has the IGT (Inert Gas Technology) system, a new pneumatic loading system which replaces the traditional spring with a percussion cap, resulting in a constant loading effort, less vibration and a shorter lock time.

The Whisper system is an integrated sound-moderator on the muzzle of the barrel that provides up to 52% noise reduction compared with a standard airgun.

SPECIFICATIONS

• Power: 24 J
• Length: 116 cm (45,67 in)
• Weight: 3,0 kg (6,6 lb)
• Velocity: 386 m/s (1.266 fps)
• Calibre: 4,5 mm (.177)

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.