Stargate M203

Name: M203
Model: Colt M203 grenade launcher
Type: Missile Weapon
Scale: Character
Skill: Missile Weapons: Grenade Launcher
Weight: 1.81 kg
Ammo: 1 (barrel)
Fire Rate: 1
Range: 1-15/76/152 m
Damage: Varies by Grenade type

Description: The Colt M203 grenade launcher is a single shot 40mm grenade launcher able to be attached to most Colt M16A3 rifle variants or to a stand alone stock. (SG1: "The Fifth Man")

Col. Jack O'Neill has been known to carry the stand-alone version and several grenades on occasion, using one to shoot down a Death glider. Colonel David Dixon employed an M203 attached to a carbine to drop a wall on a Goa'uld reconnaissance probe, destroying it. (SG1: "The Fifth Man", "Heroes, Part 1")

Source:

• Stargate Wiki: Colt M203 grenade launcher
• Stargate SG-1 RPG Sourcebook (page 339)
• thedemonapostle