Hatsan BullMaster PCP Precharged pneumatic Semi-Automatic Bullpup design 500cc air cylinder 250 BAR (3,625 psi) max fill pressure Synthetic stock with ergonomic design 11mm Dovetail and Weaver* rail Additional Weaver accessory rail beneath forearm Texturing 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 Fully-shrouded barrel for quiet shooting Rotary magazine: .177 14-rd, .22 12-rd, 10rd in .25 Includes 3 magazines Built-in pressure gauge monitors cylinder pressure Includes 1/8" BSPP threaded fill probe Overall blued finish, black anodized receiver Manual Safety Patented anti-knock system to prevent gas wastage Metal trigger & synthetic trigger guard Fitted sling swivels Overall length: 30.9" Barrel length: 19.7" Weight: 10.3 lbs Includes Hard Case Shots at optimal velocity .177=100, .22=120, .25=120 It is not recommended that the BullMaster be operated from the left-handed shooting position. The bolt located on the right-hand side of the rifle cycles with each shot fired and may cause injury if operated left handed. *We do not recommend using Weaver mounts. Some weaver/Picatinny mounts may not fit the weaver sections on the rail. Please Note: All Hatsan semi-automatic airguns are designed specifically for skirted pellets only. Slugs or other non-skirted rounds will not cycle properly.