Firearms
Currently the standard sidearm issued for State Troopers is the Smith & Wesson M&P in 40 S&W. WSP troopers also carry Remington 870 shotguns, and AR-15 rifles in their cruisers. Additionally, HK MP5 submachine guns are used (but only by WSP SWAT and other specialty units).
Read more about this topic: Washington State Patrol