Every Buck Mark starts out as a solid piece of aircraft-grade 7075 aluminum alloy, and then is CNC machined to exacting tolerances. The straight blowback design offers simplicity and reliability. The crisp single-action trigger, hand-reamed chamber, target crowned barrel and fiber optic front sight with an adjustable Pro-Target rear sight mean the Buck Mark Plus UDX comes ready straight from the box. Comfortable and secure in any condition, Ultragrip DX ambidextrous grips have slight finger grooves and laser stippling. The narrow profile makes them perfect for all hand sizes. Buck Mark Plus models feature a slabside barrel with finger grooves along the blued receiver and the signature gold Buck Mark trigger.