M40

M40

Type	Sniper rifle
Place of origin	United States
Service history
In service	1966–present
Used by	United States
Wars	Vietnam War Multinational Force in Lebanon Invasion of Grenada Gulf War War in Afghanistan Iraq War
Production history
Manufacturer	United States Marine Corps, Remington
Specifications
Weight	M40A1: 6.57 kg (14.48 lb) M40A3: 7.5 kg (16.5 lb)
Length	M40A1: 1,117 mm (43.97 in) M40A3: 1,124 mm (44.25 in)
Barrel length	610 mm (24 in) (1:12 right hand twist) M40A1: Hart (6 lands and grooves) M40A3: Schneider Match Grade SS #7 (6 lands and grooves)
Cartridge	7.62×51mm NATO
Action	Bolt action
Muzzle velocity	2,550 ft/s (777 m/s) (w/175 gr. M118LR)
Effective range	1000 yd
Feed system	5-round integral box magazine
Sights	Scout Sniper Day Scope (SSDS)—a modified version of the Schmidt & Bender 3–12×50 Police Marksman LP II scope.