FN 66101759 : The FN Reflex XL MRD stacking tight groups on target with match-grade accuracy is instinctive. Featuring an internal hammer; the trigger is the smoothest, most refined fire control in an FN carry pistol; a multi-faceted grip texture delivers more control at speed; reversible mag release; tritium front sight and all black squared U-notch rear sight; non-proprietary slimline accessory rail compatible with SureFire XSC and Streamlight TLR-7sub flashlights for 43X MOS. Include a 15rd and 18rd magazines and two interchangeable backstraps.