The Weaver Tactical Picatinny-Style Riser Mount turns your flattop AR-15 into the perfect optics platform with the Weaver Flattop Riser Rail. This riser rail is made from aircraft-grade 6061-T6, aluminum and has Type III hard coat anodizing for years of rugged use. Engineered to provide the optimal mounting height for all types of optic and ring combinations.FeaturesTurns your flattop AR-15 into the perfect optics platform Made from aircraft-grade 6061-T6, aluminum Type III hard coat anodizing for yearsEngineered to provide the optimal mounting height for all types of optic and ring combinations