AR15.com Features MAR177 January 24, 2012 Reviews Twitter0Facebook0LinkedIn0 Arguably the most popular online destination for all things AR, the Crosman MAR177 was featured on AR15.com as part of its SHOT Show coverage. The MAR177 is a .177 caliber, 600fps upper that will fit on any mil-spec AR lower. Designed with the CMP Match competitor in mind, the MAR177 allows the shooter to use their own trigger and at an MSRP under $800, is over one thousand dollars cheaper than other options. The MAR177 is currently in production, look for it soon right here.