Showing 50 of 575 firearms starting with "M"
| Name | Manufacturer | Caliber | Type |
|---|---|---|---|
| M20A1/A1B1 "Super Bazooka" | - | - | M1 Rocket Launcher "Bazooka" |
| M20A1B1 "Super Bazooka" | - | - | M1 Rocket Launcher "Bazooka" |
| M20B1 "Super Bazooka" | - | - | M1 Rocket Launcher "Bazooka" |
| M21 Designated Marksman's Rifle | - | - | M14 Rifle |
| M22 | - | - | AK-47 |
| M224 Mortar | - | - | - |
| M23 Haanbombe | - | - | - |
| M24 Serbian Mauser | - | - | Mauser Rifle Series |
| M24 Sniper Weapon System | - | - | Remington Model 700 |
| M240 Flamethrower | - | - | - |
| M240B | - | - | FN MAG |
| M240B Machine Gun | - | - | FN MAG |
| M240D | - | - | FN MAG |
| M240G Machine Gun | - | - | FN MAG |
| M249 Paratrooper | - | - | FN Minimi |
| M249 Paratrooper SAW | - | - | FN Minimi |
| M249 SAW | - | - | FN Minimi |
| M249 SAW Para | - | - | FN Minimi |
| M249 SAW Paratrooper | - | - | FN Minimi |
| M249-E2 SAW | - | - | FN Minimi |
| M249E2 SAW | - | - | - |
| M24A1 SWS | - | - | Remington Model 700 |
| M26 Hand Grenade | - | - | M26 hand grenade |
| M26 MASS | - | - | M26 Modular Accessory Shotgun System |
| M26 Modular Accessory Shotgun System | - | - | - |
| M26 Modular Acessory Shotgun System | - | - | M26 Modular Accessory Shotgun System |
| M26 hand grenade | - | - | - |
| M26MASS | - | - | - |
| M28 Finnish Mosin-Nagant Rifle | - | - | Mosin Nagant Rifle |
| M3 "Grease Gun" | - | - | M3 Submachine Gun |
| M3 / M3A1 "Grease Gun" | - | - | M3 Submachine Gun |
| M3 Carbine | - | - | M1 Carbine |
| M3 Grease Gun | - | - | M3 Submachine Gun |
| M32 MGL | - | - | Milkor MGL |
| M34 White Phosphorous grenade | - | - | - |
| M39 Finnish Mosin Nagant | - | - | Mosin Nagant Rifle |
| M39 Finnish Mosin-Nagant Rifle | - | - | Mosin Nagant Rifle |
| M3A1 "Grease Gun" | - | - | M3 Submachine Gun |
| M4 | - | - | M4 (disambiguation) |
| M4 CQBR | - | - | M16 rifle series |
| M4 Carbine | - | - | M16 rifle series |
| M4/M4A1 Carbine | - | - | M16 rifle series |
| M40 | - | - | M40 (disambiguation) |
| M40 Recoilless Rifle | - | - | - |
| M40 sniper rifle | - | - | - |
| M40A1 | - | - | Remington Model 700 |
| M40A1 Sniper Rifle | - | - | Remington Model 700 |
| M40A1 sniper rifle | - | - | Remington Model 700 |
| M40A3 | - | - | - |
| M40A3 Sniper Rifle | - | - | Remington Model 700 |