Hatsan BullBoss QE Precharged pneumatic power with side-lever cocking action Bullpup design Available in .22 (5.5 mm) and .25 (6.35 mm) calibers Hardwood stock Optics rail for both 11 mm and 22 mm (weaver/Picatinny) scope mounts Additional Picatinny rails beneath forearm and on sides of forearm Checkering on grip and forearm for better control and feel Elevation-adjustable Cheek Comb - Stock equipped with integrated elevation adjustment button Ventilated rubber butt pad Precision rifled and choked barrel for accuracy QuietEnergy fully shrouded barrel and Integrated Sound Moderator cuts noise by 32% Rotary magazine: .22 10-rd, .25 9-rd Includes 2 magazines Detachable steel air cylinder tube (230cc). (Spare cylinders are available) Built-in pressure gauge on the air cylinder monitors cylinder pressure Includes fill probe & air cylinder discharging cap supplied in the box Overall blued finish, black anodized receiver Manual & Automatic Safety Anti-double pellet feed mechanism prevents more than one pellet loading into barrel Patented anti-knock system to prevent gas wastage when rifle is knocked or bounced Quattro Trigger: 2-stage full adjustable match trigger for trigger travel and trigger load Metal trigger Fitted sling swivels Overall length: 36.8" Barrel length: 23" Weight: 10.2 lbs Muzzle energy: .22 cal=38 fpe, .25 cal=42 fpe Optimal shots per fill: .22 cal=35, .25 cal=30