I just received this shoulder stock from Cimarron Arms after a back order of many months. Here is the link to Cimarron's listing. https://www.cimarron-firearms.com/accessories/skeletal-shoulder-stock.html I had previously purchased a Uberti 1860, "cut for shoulder stock" in anticipation of acquiring a stock. This model has extra raised screw heads and a recessed cut in the bottom of the grip frame. The new Skeletal stock appears to have been designed to fit standard configuration 1860's. Rather than utilizing the raised screw heads, this stock attaches to a replacement hammer screw that has an enlarged head and stud that protrudes on the right side of the frame. The bottom hook secures on the bottom grip frame and does not require the cut. However, on my model it is necessary to remove the raised head screws to provide clearance. This leaves two holes in the frame open to dirt and crud. The shipping price from Cimarron was $151.98. I'll sell it for $130 and shipping is free within the USA. Payment can be made by money order or Paypal. Add 3% if using Paypal. Please advise any questions.