Designed for Glock MOS slides, except slim-line models; Holds Aimpoint ACRO optics and compatible footprint red dots securely; Durable 6061 T6 aluminum with Type III anodizing for long-lasting performance; Scratch- and corrosion-resistant to maintain finish under heavy use; Thermal- and dielectric-enhanced for heat resistance and stability; Quick installation with no slide modifications needed; Holster-friendly design works with all GRITR holsters; Precision engineering for a tight fit with no wobble; Lightweight yet rugged for reliable performance at the range or in the field; Covered by GRITR "Unlimited GRIT" Lifetime Warranty