For 45/70 caliber rifles and Dovetail front sight Not compatible with X models or screw-in front sights Does not work with 30-30 models - Not compatible with octagon barrels or brass receivers Heavy-duty ghost ring for fast target acquisition Features 4" Picatinny rail section OR T1/T2 red dot pattern interface by specific sku Wide windage and elevation adjustment range for use with different ammunition Midwest Industries sight adjustment tool included Constructed from Hardcoat Anodized 6061 Aluminum Steel rear aperture and front sight post Made in the USA MI Lifetime Warranty Patent Pending Mfg: Midwest Industries