The MK12 SPR is a cut Sniper Rifle in Call of Duty: Modern Warfare 3. It can be found in the local game files as a thumbnail for the Elite application. It appears to be a customized M4A1 with a RSASS scope, bipod, rails, longer barrel and a visibly shorter magazine.
- According to the texture file, on the side of the gun, just above the magazine, it is possible to read
CAL. 5.56 MM