Stainless Mid-Frame NM Blackhawk 45ACP Cylinder. Excellent condition. Dimensions: Over all length-1.826", Ratchet to front of cylinder-1.766", Boss Height-.065", Cylinder Diameter-1.675". Measurements are to the best of my ability with digital calipers. Faint turn line. Reduced from $165 to $150 shipped USPS Priority. USPS Money Order or personal check - will hold till clears. Contact by PM. Cylinder is listed elsewhere - earliest "I'll take it." gets the cylinder.