Umarex NXG APX air rifle Multi-pump pneumatic 2-10 pumps 75rd BB repeater and single-shot pellet gun Rifled barrel 3.50 lbs. trigger-pull 3/8" optics rail* Safe-T-Matic automatic safety system EZ-Load pellet ramp Ambidextrous synthetic thumbhole stock Impact-resistant stock Rubberized, textured dual raised cheekpieces 14.25" length of pull Includes 4x15 scope and rings *The box and manual state the gun has a Picatinny rail. It does not. The optics rail has a clamping width of exactly 3/8 of an inch (9.5mm). A Picatinny rail has a clamping width of 21mm. The scope has a tube diameter of 3/4 of an inch. Cocking Effort: 1st pump - 6 lbs 3rd pump - 11 lbs 5th pump - 15 lbs 8th pump - 20 lbs 10th pump - 21 lbs