Sights: Metal rear sights adjustable for windage. Polymer front sight is fixed with 3 different heights for elevation; Top strap is cut with a wave to reduce glare; Double or single action trigger: Double action 17.5 lbs, single action 6.1 lbs.; PPK/S frame: the "sport" version with longer grip.; Rear slide serrations: Non-slip grip and classic walther styling; Hammer drop decocking safety: Locks the firing pin for confident, safe handling; Beaver tail extension: Improves shooting comfort and stability; Classic grip: Checkered panels are standard; Threaded barrel: Size - M8x.75