Crosman Valiant SBD Nitro Piston .22 (5.5mm) Rifle

Nitro Piston Elite (Gas Piston)
Breakbarrel
Single shot
Fluted steel barrel
2-stage adjustable trigger (CBT = Clean Break Trigger)
Front and rear sights
11mm dovetail optic rail
Manual safety
Adjustable rear sight/fixed front sight
Fluted steel barrel
Hardwood stock
CenterPoint® 4x32mm scope
Benefits of the Nitro Piston over a metal mainspring:

Smoother cocking
Smoother shooting
No spring torque
No spring fatigue, even if left cocked for hours.

Works perfectly in cold climates.

Lasts longer than a metal spring.