Rail Mount Light, Part CMR-202 Crimson Trace CMR-202. CMR -202 /Rail Master for M1913 Rail Equipped Firearms Fits most M1913 Picatinny or Weaver style rails on pistols, rifles or shotguns. The item "Crimson Trace, Rail Master-Univ. Rail Mount Light, Part CMR-202" is in sale since Thursday, August 17, 2017. This item is in the category "Sporting Goods\Hunting\Scopes, Optics & Lasers\Lights & Lasers".The seller is "promax_supply" and is located in 12 Locations Nationwide. This item can be shipped to United States.