A Pit Bull Pup
At 940mm long and nearly 5kg, the Airmax is a substantial bullpup. Much of that is down to the 400cc metal air bottle which, along with a further 90cc of air stored in a short cylinder, provides around 200 shots from a 200 bar fill. Located near the neck of the bottle, the fill port is accessed by removing a short plastic plug which I had to poke out with a screwdriver.
The ambidextrous stock is fitted with sling swivels and has a double cut-out in the butt to both save weight and provide access to the pistol grip that has no chequering, but is contoured for your fingers. The rubber recoil pad is ventilated, but does not adjust, unlike the soft-touch cheekpiece which will go up and down once a button is depressed. The forend cups the air bottle and has a row of four weight-saving holes and a Picatinny accessory rail.
Hatsan AT44 shooters will recognise the 10-shot .177 and .22 magazine and breech setup. After pulling back the sidelever, the magazine is released by pulling back a short bolt catch which must be returned to lock the magazine in place once inserted. The sidelever operates with no notchiness, and the action has an anti-double load feature.
Cocking the Airmax also sets the safety catch – a back-to-front trigger blade design located forward of the actual trigger that has to be pushed forward to make the rifle live. Although it is resettable, the safety catches that are located inside the trigger guard are not my favourite.
The Airmax has Hatsan’s QuietEnergy fully shrouded barrel that features an integrated silencer. Although it looks like it will unscrew, the muzzle cap is not intended to come off and there’s no capacity to add an external silencer. The Airmax does, however, have the company’s two-stage Quattro trigger, which is adjustable for both weight and travel.