Gamo Swarm Magnum Pro GEN3i 177 & 22 Price | Airgun Store

The Gamo Swarm Magnum Pro GEN3i represents the pinnacle of break barrel air rifle engineering, combining devastating magnum power with the speed of a 10-shot multishot system . Its patented 10X GEN3i Quick-Shot technology uses the rifle’s own recoil inertia to automatically index the magazine, delivering lightning-fast follow-up shots without manual reloading . This rifle is purpose-built for hunters and pest controllers across Germany, France, Italy, Spain, the Netherlands, Belgium, Poland, Austria, and Denmark who demand power, speed, and reliability in the field. The automotive-grade glass-filled nylon stock features non-slip texturing on the grip, forearm, and cheekpiece, ensuring a secure hold in all weather conditions .

The Swarm Magnum Pro GEN3i is available in 4.5mm (.177), 5.5mm (.22), and 6.35mm (.25) calibres . The .25 version delivers up to 40 Joules with velocities reaching 190 m/s using PBA pellets . The .22 and .177 versions produce 36 to 45 Joules with velocities up to 380 m/s and 470 m/s respectively . Overall length measures 121cm with a precision-rifled steel barrel featuring the Whisper Fusion integrated sound moderator . The rifle weighs 2.9 kg without scope and 3.4 kg with the included optic . The RRR (Recoil Reducing Rail) system uses a two-piece construction with polymer shock absorbers to protect mounted optics .

The 10X GEN3i magazine holds ten pellets in a horizontal inertia-fed design that sits flush with the receiver . The inertia-driven indexing mechanism rotates the magazine using the rifle’s recoil force, creating a smoother and more precise loading process that eliminates double-feeding . The IGT Mach 1 gas piston with a 33mm cylinder delivers consistent power, reduced vibration, and superior durability compared to traditional springs . The C.A.T. (Custom Action Trigger) is fully adjustable for both travel and pull weight . The Whisper Fusion integrated moderator with double-chamber design reduces muzzle noise for discreet shooting .

Owners report several issues worth noting. The included 3-9×40 WR1PM scope is widely considered the rifle’s weak point, with users reporting poor image quality, lack of parallax adjustment, and internal components failing under recoil . The O-ring that retains pellets in the magazine can dry out after 5-10 full loads, making pellet insertion difficult . Some users have experienced defective magazines that fail to cycle . The cocking effort is substantial due to the high power, which can be tiring during extended shooting sessions . Owners recommend regularly checking screws as they can loosen during use . The manual warns that setting the trigger below three pounds may cause unintended discharge if dropped.

The Swarm Magnum Pro delivers impressive hunting accuracy, with owners reporting consistent performance at ranges up to 50 yards . Groups at 50 yards averaged 2.08 inches with three-shot groups ranging from 1.47 to 2.28 inches . For optimal accuracy, quality pellets are essential with this high-power gas ram rifle. Gamo recommends the Pro Magnum AccuTek Series pellets, which were developed specifically for this rifle . The Gamo Redfire pellets with polymer tips produced “a big hole with most shots touching” at 25 yards during testing . The .25 version excels with heavier pellets, which also reduces the supersonic crack produced by lighter ammunition . The IGT gas ram system provides consistent velocities shot after shot, contributing to reliable grouping.

Order your Gamo Swarm Magnum Pro GEN3i from Airgun Store today with power levels suitable for your country. The rifle comes with a 5-year manufacturer’s warranty and includes one 10X GEN3i magazine, a 3-9×40 scope, and manual . We strongly recommend upgrading the included scope to a quality airgun-rated optic such as Hawke or UTG, as the bundled unit may not deliver consistent performance for serious hunting work . A spare 10X magazine and a pellet sampler to identify your rifle’s preferred ammunition will enhance your shooting experience. Our expert team is ready to advise on calibre selection and accessories for your specific needs across Spain, France, Italy, Germany, and all EU member states.