This is the latest HOG Saddle model with some improvements from the original design. List of improvements: Opens 1/4" wider than original model. (2 11/16" Open, 1 1/2" Closed) Incorporates a retention button screw to prevent unintentional disassembly in the field. Weighs less than 16 ounces. Added cut-outs to the base of the HOG Saddle. These narrow slots better integrate with tripod heads or QR plates that have anti-rotation video pins. MOD7 Specs: CNC machined from a solid block of aluminum Black oxide stainless steel bolt and guide rods Hard anodized finish (a resilient surface which serves as an excellent base coat for custom camouflage paint) 1/4-20 stainless steel mounting threads and 3/8-16 back up threads CNC machined torque knob assembly with retention button screw to prevent disassembly in the field (opens 1/4in wider than previous model) Stainless steel noise dampening tension spring 1/4 inch thick, recessed urethane pads specifically engineered to absorb rifle recoil and reduce muzzle jump Anti-rotation slots to accept tripod QD plates that have video pins Superior resistance to corrosion Shadow Tech MOD7 HOG Saddle