Silent Stalker Whisper 6110049254 177 Caliber, 1300 fps with PBA Platinum, 3-9X40 Air Rifle Scope. ND52 and IGT Technologies PLEASE FIX THE ISSUE MECHANISM-Velocity: 1300 feet per second (fps) with PBA Platinum-Single Shot -Break Barrel: Single Cocking System-Automatic Cocking Safety system-Barrel: Fluted Polymer Jacketed Steel with ND52 Technology-Cocking Effort: 32 lbs-Trigger. Two stage adjustable SAT (Smooth Action Trigger)-Manual SafetySTOCK-Stock. Tough All Weather molded Synthetic-Butt Plate: SWA (Shock Wave Absorber) Recoil pad with up to 74% recoil absorption-Cheekpiece. Thin cheekpad molded on each side for both Right hand and Left hand shooters-Checkering: Non-Slip texture design on grip and forearmOPTICS-Scope Ramp. Raised Rail-Scope: 3-9x40 air rifle scope with rings.SPECIFICATIONS-Weight: 7.15 lbs-Length: 43-Ammunition: Any .177 Pellet-Caliber: .177-Trigger Pull: 3.74 lbs-Barrel Length: 18 in .