Savage Bolt Head Savage Bolt Head complete with ejector and extractor assembly. These are available in 3 bolt face configurations: 223 – Model 110-116 Axis, etc. (Will not fit short action two-digit Models 10, 12, etc.) 308 – Model 110-116 Axis Etc. (Will not fit short action two-digit Models 10, 12, etc.) Magnum – Model 110-116 (NOT COMPATIBLE WITH SAVAGE AXIS, Will not fit short or long action magnum two-digit Models 10, 12, etc.)   NOT compatible with Savages produced before the year 1999. Will not fit short action two digit Models 10, 12, etc. Notes: Later and current Savage rifles (Post 1999) use a small firing pin body Firearms – Rifles & Shotguns | Savage Arms J&A Outdoors – Firearm Solutions – Shooting Products (jaoutdoors.com)