Which two features uniquely identify the M249?

Which two features uniquely identify the M249?

• A. A regulator to change the rate of fire and belt-fed capability only.
• B. Open-bolt operation and a fixed stock.
• C. A regulator to change the rate of fire, and compatibility with M16 magazines as well as belt-fed.
• D. Integrated optic sight and laser rangefinder.

Answer: (C)

Two features that help identify the M249 are its adjustable rate-of-fire regulator and its dual-feed capability using both belts and M16 magazines. The regulator lets the operator choose a higher or lower cyclic rate to balance firepower, heat, and ammo use in different situations. The magazine compatibility—being able to feed from standard M16 magazines in addition to belt-fed ammunition—is the standout trait that sets the M249 apart from other belt-fed light machine guns, which typically feed only from belts. Together, these two aspects uniquely identify the M249 in typical infantry weapons discussions. Open-bolt operation and a fixed stock are common across many light machine guns and don’t uniquely identify the M249, and an integrated optic sight with a laser rangefinder isn’t a defining feature either, since optics configurations vary widely and aren’t exclusive to this weapon.

Two features that help identify the M249 are its adjustable rate-of-fire regulator and its dual-feed capability using both belts and M16 magazines. The regulator lets the operator choose a higher or lower cyclic rate to balance firepower, heat, and ammo use in different situations. The magazine compatibility—being able to feed from standard M16 magazines in addition to belt-fed ammunition—is the standout trait that sets the M249 apart from other belt-fed light machine guns, which typically feed only from belts. Together, these two aspects uniquely identify the M249 in typical infantry weapons discussions.

Open-bolt operation and a fixed stock are common across many light machine guns and don’t uniquely identify the M249, and an integrated optic sight with a laser rangefinder isn’t a defining feature either, since optics configurations vary widely and aren’t exclusive to this weapon.