The bolt pattern on this mount works for Savage Mark II and 93 rifles. The difference between these mounts is the size of the ejection port. Savage MK II mount – 1-3/8″ ejection port The Savage MK II mount will also fit the Savage MK I. Savage 93 mount – 1/-5/8″ ejection port *If your gun is a Savage 93, it will have a 1-5/8″ ejection port. If your gun is an older production Mark II, it will have a 1-3/8 ejection port. New production Mark II rifles have a 1-5/8″ ejection port and require the use of our Savage 93 mount. Please measure the size of your ejection port prior to ordering to ensure the right fit.* These mounts are available in 0 or 20 MOA. Please see our FAQ section for more information on deciding which MOA is right for you. Picatinny cross slots run the full length of the rail, which gives the shooter flexibility when mounting scope rings and other accessories. The channel in the center reduces the overall mass of the mount, weighing in at 2-3oz on average. Also, in many cases, it will not obstruct usage of factory iron sights. EGW’s one piece scope mounts are the obvious choice for hunters and tactical shooters alike. Add EGW’s Practical or HD Scope Rings to make it a complete overhaul! Available in matte black. Custom silver anodizing is available upon request, at an additional charge of $15 (there is also a 3 month lead time associated with silver anodizing. Please give us a call if you’d like to place a custom order). This mount is a Picatinny-style base and compatible with Picatinny or Weaver scope rings. Installation: EGW recommends 20 inch lbs of torque and a drip of blue loctite (loctite is available through our website and is sold separately).