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M203 Grenade Launcher
IN PRODUCTION
Quick Overview
Overview
The M203 is a single-shot 40mm under-barrel grenade launcher designed to mount beneath the M16 rifle and M4 carbine. It has been the standard U.S. military grenade launcher since 1969, providing squad members with a combined rifle/grenade capability.
Calibers & Ammunition
Dimensions
Overall Length
380mm (15 in) standalone configuration
Barrel Length
305mm (12 in) launcher only
Weight
1.36 kg (3 lb) launcher only
Mechanical
Action Type
Pump-action sliding barrel, single-shot
Trigger Type
Single-action
Sights Type
Quadrant sight (leaf or ladder), 350m maximum
Magazine Capacity
Single-shot, sliding barrel
Additional Information
action
Pump-action (slide barrel), single-shot
mounting
Under-barrel on M16/M4 or standalone with stock kit
ammunition
40×46mm SR (low velocity)
rate_of_fire
5-7 rounds per minute
barrel_length
305mm (12 in)
effective_range
350 m point, 150 m area
How does the M203 Grenade Launcher compare?
Pick any other firearm for a side-by-side spec breakdown.