Dovetail ramp front sight, snag free rear sight. Single action. Checkered wood grips. Two slide assemblies provided .22 LR and .45 ACP. Magazine capacity .22LR 10 rounds/.45ACP 8 rounds. Combat hammer. Skeletonized trigger.Barrel Length : 5Hand Gun Web Model : Rock Island ArmoryCaliber : .22LR/.45ACPFinish : ParkerizedBarrel Length Range : 5″<6"Item Description : API M1911A1 XT22 22LR/45 CB 10Caliber-Gauge : .45 ACP/.22 LR SKU: 4806015519379 UPC: BRAND: Rock Island-Armscor Manufacturer Number: 51937 Caliber: 45 ACP Unit of Measure: Each Classification: Firearm