-LAPET (Light Armor Piercing Explosive Tipped) : The M41 Fires the standard US M309 10 x 24 Light Armour Piercing Explosive Tipped round. This ammunition comprises a 210 grain (13,6 gram) projectile embedded within a rectangular caseless propellant block of Nitramite 50. The propellant content is small but highly efficient, generating muzzle velocities in the order of 840 meters per second.
The round is explosive tipped, with impact fusing pre-set during manufacture. Terminal ballistic characteristics have been optimized for maximum lethality against infantry wearing personal armor. The round is designed to penetrate the armor, exploding just after impact to inflict lethal internal damage. The standard M41 ammunition clip will hold up to 99 M309 rounds in an 'U' bend conveyor, which feeds the rounds mechanically into the rotating breech mechanism. However, in practice the clips are only filled to 95% capacity in order to reduce the autoloaders tendency to jam.
-Lo-V (Low Velocity): For use in sensitive installations and spaceships to avoid collateral damage and hull breaching. This round has poor penetration characteristics against armor and hard cover.
-M40 High Explosive Fragmentation Grenade: The most commonly used round in the grenade launcher is the M40 High Explosive fragmentation round which is marked with red plastic cap. It has a muzzle velocity of 78 m/s, an effective range of 400m and an accurate range of around 180m.
The cartridge has a rimmed, separating base, and launches a projectile with and explosive element comprised of a notched steel wire wrapped around a filler of composition B15. When the round explodes, it spreads more than 300 fragments over a casualty radius of five meters.
The M40 can be employed as a hand grenade by flipping off its plastic cap and pressing the exposed button twice; this gives a five-second delay before the grenade explodes.
-M38 High Explosive Armour Piercing (HEAP) Grenade: Capable of penetrating 7 cm of homogeneous steel, the round bursts with a casualty radius of 5 meters. This round is marked with a green cap.
-M51A Bounding Fragmentation Grenade: This blue-capped round is not point detonating like the M40 or M38. When the round impacts, a small charge propels it two meters into the air, where it air bursts for additional effect against troops in the open or in foxholes without overhead control.
-M230 Baton Grenade: Rarely issued to the Colonial Marines, this yellow capped round fires a low-velocity plastic projectile capable of incapacitating or even disabling an unprotected human. Primarily used during civil disturbances. Cannot be thrown.
-M60 White Phosphorous Incendiary Grenade: This white-capped round contains a filler of white phosphorous which spreads up to 15 meters after impact, creating a rising smoke cloud and flame with a secondary incendiary effect against vegetation and material.
-M71A1 Starshell Grenade: Marked with an embossed letter S on the top, the M72A1 is fired 200 meters into the air where it releases a parachute and ignites, providing illumination of 50,000 candelas for approximately 45 seconds. It is used to illuminate open areas shrouded in darkness.
-M59C Smoke Grenade: Military and Police forces use these grey capped rounds to create temporary concealment. The smoke obscures all sight and even blokes nightvision goggles. M59C Smoke rounds are available in several colours including: white, red, yellow, green and purple. This makes them ideal for signalling purposes.
-M28 Teargas Grenade: Military and police forces use these purple capped rounds to disperse crowds and smoke out hostage takes. Once the round has been launched (or thrown), it fills approximately a five metre radius with a cloud of irritant gas, which causes the eyes to water profusely. Obviously the round has no effect against people wearing respirator masks.
-M97 Flashbang Grenade: This round is used in conjunction with room clearing techniques, namely a person will throw one of these into a room it will then produce a loud explosion and extremely bright light that can temporally blind any person looking at it when it explodes, it will then be followed up by people assaulting the room. They are marked with an embossed 'F' on the top.
