MCR stands for Multi-Caliber-Rifle and it is built on the AR type design. MCR Semi-Automatic rifles come in four different models which interchange with each other from one series to the next. To change calibers for example from a .223 (MCR100) to .308 (MCR200) you simply change the upper receiver and magazine module.

MCR Series Rifle Specifications:

• G3 Magazine well w/HK91 Magazine
• Upper/Lower receivers and magazine module made out of T6-6061aircraft aluminum.
• Semi-Automatic AR type gas operation.
• Free floated Lothar Walther barrel available in different lenghts.
• MIL STD-1913 rail machined on the upper receiver.
• AR type pistol grip and butt stock.
• AR type trigger group parts that interchange with standard AR's.
• Rifle weight depending on calibers from 8 lbs to 16 lbs.
• Rifle comes with standard hand guard, stock and grip