The Ruger LCR is a compact revolver built by Ruger and announced in January 2009. The LCR acronym stands for 'Lightweight Compact Revolver'. It incorporates several novel features such as a polymer grip and trigger housing, monolithic receiver, and constant force trigger. At 13.5 oz (380 g), the LCR is nearly 50% lighter than the stainless steel SP101 and with only the barrel and fluted cylinder made of stainless steel. The frame is aluminum alloy and synthetic glass-filled polymer finished in matte black with Synergistic Hard Coat. The LCR operates in double-action only (DAO) as the hammer is concealed within the frame handle's fire control housing of the gun and cannot be cocked prior to firing. In order to create a crisp and light trigger pull that is non-stacking, it features a frictio