The United States Secret Service is on the hunt for a new 5.56x45mm rifle. According to their request The United States Secret Service has a requirement for a 5.56 x 45mm rifle, equipped with full- and semi- automatic firing capability, for use in all environmental conditions, including when discreet carry and/or maximum concealment is required. The weapon shall be commercially available and exhibit a ‘manual of operation’ consistent with the existing/legacy M-16 family of weapons.

The Secret Service has also indicated that they will be utilizing the Mechanix Wear Vent gloves during testing. The magazines approved for the reliability and endurance testing are the Magpul PMAG 30 AR/M4, 5.56×45 magazines.

Below are the physical requirements listed out in their solicitation notice.

  • The weapon shall be operable, without modification or alteration, by a right or left-handed user, firing with the right or left hand, depending on handedness
  • All external metal parts of the weapon shall have a dark subdued, rust/corrosion resistant finish. The finish shall be unaffected by commercially available gun cleaning solvents, such as Simple Green, used in heated ultrasonic cleaning tanks. Flaking, peeling, blotching, etc. of the finish is unacceptable.
  • The weapon shall be chambered in accordance with current U.S. Military specifications for 5.56 x 45mm, and function with assorted ammunition ranging in weight from 55 to 77 grains (to include all common SAAMI-spec and Mil-Spec ammunition) as well as frangible ammunition.

Dimensional Requirements: