Umarex TUSK PCP Air Rifle .357 caliber Precharged pneumatic 500cc, 4,350 PSI bottle Regulator: 3,250 PSI Bullpup design 28" Rifled barrel with 1:43" twist Max. velocity; 1,085 FPS w/ 82gr pellets Max. energy: 228 PFE w/ 100gr slugs Two stage trigger Picatinny rail Carbon fiber shroud QD Foster fill port Degas screw Weight: 10.11 lbs Length: 41.75" M18x1 muzzle thread Comes with two 8-round magazines