G&G GPM9 MK3

The G&G GPM9 MK3 is an M9/Beretta-style gas blowback pistol with a full metal slide and frame. The slimmer frame compared with earlier GPM9 versions gives a more comfortable grip, while an enlarged gas valve and a new "whirl cylinder" valve reduce cycle loss and counter freezing during frequent use in cold weather.

Green gas pistols often lose performance at low temperatures or during rapid, repeated shooting, because the valve cannot keep up with the gas release. The GPM9 MK3's enlarged valve and whirl cylinder design are developed precisely to keep the cycle stable under those conditions – relevant for players who play through the autumn and winter in a northern European climate.

Construction, performance and handling

The specifications are aimed at reliable performance in changing weather:

• Full metal slide and frame: Realistic weight and durability compared with polymer alternatives in the same price range.
• 100 m/s muzzle velocity (0.20 g BBs): Consistent performance within most sites' rules.
• 120-click hop-up: A finely adjustable hop-up system gives precise control over the trajectory with different BB weights.
• Enlarged gas valve and whirl cylinder valve: Reduces cycle loss and counters ice forming in the valve during frequent shooting or in the cold.
• 27-round magazine and 12 mm CCW thread: Standard capacity for the platform, and the thread makes the pistol ready for aftermarket mock suppressors.

Maintenance and safety

• Only use green gas intended for airsoft – avoid overfilling the magazine, as this can damage the valve
• Lubricate the magazine O-rings regularly with silicone oil to keep them gas-tight
• Keep the magazine warm before use in cold weather for more stable performance
• Treat the pistol as loaded, and always wear eye protection approved for airsoft during play