I Overview
The M16 rifle has a cyclic rate of fire between 700 and 950 rounds per minute, depending on the specific model and variant. [
1,
2]
Rates of Fire Breakdown
- Cyclic Rate: 700 to 950 rounds per minute (the maximum speed it can cycle mechanically). [1]
- Semi-Automatic: 45 to 60 rounds per minute. [1]
- Sustained Rate: 12 to 15 rounds per minute (the safe rate to prevent overheating during continuous use). [1, 2, 3]
- Burst/Automatic Variant Differences:
- M16A1: Fully automatic at roughly 700–800 rounds per minute.
- M16A2 / M16A3: 3-round burst or full auto with a cyclic rate of 700–900 rounds per minute.
- M16A4: 3-round burst with a cyclic rate around 700–950 rounds per minute. [1, 2, 3, 4]
AI
A standard civilian AR-15 is a semi-automatic rifle that fires one bullet per pull of the trigger. Its practical rapid-fire rate is about 45 to 60 rounds per minute (roughly 1 round per second depending on how fast the operator pulls the trigger), while its safe sustained rate for continuous use is 12 to 15 rounds per minute