The instructors for Magpul's training division wanted a 1911 grip with advanced features, improved control characteristics, and Magpul value. These grips were designed with their input and testing. Constructed of heavy-duty reinforced polymer, MOE 1911 Grip Panels have a unique diamond-shaped cross section to prevent twisting in the hand, aggressive magazine release cut-out, positive anti-slip texture, and are compatible with ambidextrous safeties. The grips are designed to fit full size framed 1911s with standard grip screw bushings. Made in U.S.A. Features: Fits Full Size Frame 1911s and copies with standard grip screw bushings Reinforced polymer construction Unique diamond-shaped cross-section to prevent twisting in the hand Aggressive magazine release cut-out Compatible with ambidextrous safeties Positive, anti-slip texture Specifications: Weight, total: 1.1 oz. Thickness, max: 0.25 in.