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The United States Marine Corps Designated Marksman Rifle (DMR, NSN 1005-01-458-6235; more formally the United States Rifle, Caliber 7.62 mm, M14, DMR) is a semi-automatic, gas-operated rifle chambered for the 7.62×51mm NATO cartridge. It is a modified version of the M14 rifle formerly used by the United States Marine Corps.
[14] [15] The M110A1 features a Geissele M-LOK rail handguard, Geissele adjustable two-stage trigger, Geissele optic mount, OSS SRM6 suppressor, and 6-9 Harris bipod and mount. [1] [8] The M110A1 SDMR is differentiated from the CSASS by the selected optic and the buttstock type.
The M39 Enhanced Marksman Rifle (EMR; formally Rifle, Caliber 7.62 mm, M39 Enhanced Marksman Rifle; NSN 1005-01-553-5196) is a semi-automatic, gas-operated designated marksman rifle chambered for the 7.62×51mm NATO cartridge.
Replacement of existing weaver rails with a MIL-STD-1913 rail capable of accommodating both a day optic and in-line forward mounted, AN/PVS-26 (NSN 5855-01-538-8121) image intensified (I2) night vision device. Reconfiguring the stock with a stock that incorporates a detachable box magazine, adjustable comb and length of pull.
M27 with an SCO, KAC NT4 QDSS suppressor, AN/PEQ-16, and Harris bipod. The standard optic is the Trijicon Advanced Combat Optical Gunsight (ACOG) Squad Day Optic (SDO), officially designated the Sight Unit, SU-258/PVQ [TA11SDO]. It is a 3.5×35 machine gun optic that has a Ruggedized Miniature Reflex (RMR [RM05 RMR]) sight screwed on top for ...
Sling attachment points are mounted on each side of the rifle, so it can be carried flat against the back and used comfortably by left- and right-handed users. A front attachment point is situated below the fore end and can be used to anchor a target style sling or replaced by an adapter for a Harris bipod.
Casemate-mounted 5"/50 caliber gun on the USS North Dakota. A casemate is an armoured structure consisting of a static primary surface incorporating a limited-traverse gun mount: typically, this takes the form of either a gun mounted through a fixed armour plate (typically seen on tank destroyers and assault guns) or a mount consisting of a partial cylinder of armour "sandwiched" between ...
The mount consists of a base plate and a bipod, which is provided with screw type elevating and traversing mechanisms to elevate/traverse the mortar. The M64A1 sight unit (also used on the M224) is attached to the bipod mount. The M252 is a gravity-fired smoothbore system.