FX Crown MKII, GRS Green Mountain Laminate Stock Precharged pneumatic Adjustable GRS Green Mountain laminate stock Smooth sidelever cocking system FX Smooth Twist X (STX) barrel system Superior Superlight STX liner included Interchangeable calibers and barrel liners (additional calibers and liners sold separately) Fully shrouded barrel Updated breech block with four barrel set screws for more rigidity = better performance Breech block upgrade allows for caliber changes without removing scope Externally adjustable AMP (Adjustable Match Precision) regulator Externally adjustable hammer spring tension 3-step transfer port adjustment Dual pressure gauges: one for air tube pressure, one for regulator pressure Removable 480cc carbon fiber air cylinder Max. fill pressure is 250 BAR (3600 PSI) Magazine capacity: 21 rounds (.177), 18 rounds (.22), 16 rounds (.25), 13 rounds (.30) Max. energy: 32 FPE in .177, 56 FPE in .22, 65 FPE in .25, 90 FPE in .30 Shots per fill: 200 in .177, 145 in .22, 110 in .25, 45 in .30 600mm (23.6") barrel 28% larger plenum coupled with larger valving offer more power than ever before Overall length of 44.25" without moderator, 49" with moderator Two-stage adjustable, match trigger Upgraded action with integrated 20 MOA Picatinny rail Adjustable rubber buttpad Adjustable cheekpiece Male quick-disconnect foster fitting Includes one magazine, hardcase, and 3-year transferable warranty