The HM50B2 is the evolution of the HM50B Rifle. HM Defense lightened and strengthened areas that are beneficial for military and law enforcement use. The HM50B2 upper receiver lower receiver and rail were designed with a modern look andlightened. The machined adjustable stock is made by HM with a steel through bolted mounting system joining the stock to the lower receiver. The stock has an adjustable comb length of pull butt pad flat bottom and includes a removeable1913 picatinny rail for secure monopod mounting. Features a button rifled threaded barrel; 14″ Picatinny rail; aluminum receiver; HM Target trigger and ERGO Tactical Super Ambi grip. Includes removable monopod mount 10rd mag and hard case w/laser cut foam.