Diana 350 N-Tec Premium Magnum .22 Break-Barrel Air Rifle

The Diana 350 N-Tec Premium Magnum is a gas-piston variant of Diana's acclaimed 350 Magnum platform — replacing the conventional steel coil spring with Diana's proprietary N-Tec gas-ram powerplant. The N-Tec system uses a sealed nitrogen-charged cylinder in place of a traditional mainspring, producing a smoother firing cycle, meaningfully reduced mechanical vibration, and more consistent power delivery across ambient temperature variations that would otherwise affect a steel spring's performance characteristics.

The practical advantages of the gas-piston design are tangible and directly relevant to shooting performance: a smoother forward discharge impulse reduces scope reticle movement, less mechanical vibration reaches the shooter's hold between shots, and the sealed nitrogen cylinder does not take a mechanical set from prolonged compression — maintaining consistent power output across the platform's service life.

Retaining the Diana 350's premium beechwood stock, T06 adjustable match trigger, and magnum-class power output, the N-Tec Premium represents the most technically refined version of the 350's design intent. The beech hardwood stock provides the warm, traditional feel consistent with Diana's heritage craftsmanship, and the classic styling is unchanged from the standard 350 Magnum.

The 11mm dovetail rail accepts standard airgun mounts for optic installation, and the T06 trigger's user-adjustable first and second stages give the shooter direct control over trigger feel without requiring any modifications.