Designated marksman rifle
A designated marksman rifle (DMR) is the weapon used by soldiers in the designated marksman (DM) role. The DM's role fills the gap between a regular infantryman and a sniper (typically being deployed at ranges of 250–500 metres or 270–550 yards) and DMRs have been developed with this middle ground in mind.
These rifles have to be effective, in terms of accuracy and terminal ballistics, at ranges exceeding those of ordinary assault rifles and battle rifles (typically 250 m or 270 yd or less, and up to 500 m or 550 yd, respectively) but do not require the extended range of a dedicated sniper rifle (typically employed for targets at ranges from 500–2,000 m or 550–2,190 yd).
DMRs, however, often share some basic characteristics with sniper rifles in difference to the weapons carried by others in the DMs unit. DMRs may have an attached telescopic sight, quickly deployed stabilizing bipod to allow optimized accuracy and low-recoil in temporarily fixed situations or an adjustable stock.