What is the Round Button on AR-15?
The AR-15 is a popular firearm among enthusiasts and professionals alike. One of its distinctive features is the round button, often found on the lower receiver. This button serves a crucial purpose and is integral to the firearm’s functionality. Let’s delve into the details of this round button and its significance.
Functionality of the Round Button
The round button on the AR-15 is commonly referred to as the “selector switch.” Its primary function is to toggle between different modes of fire. The selector switch allows the user to choose between semi-automatic, fully automatic, and sometimes even burst fire modes, depending on the specific firearm and its configuration.
Understanding the Selector Switch Positions
Here’s a breakdown of the different positions of the selector switch and their corresponding modes of fire:
| Position | Mode of Fire |
|---|---|
| Up | Semi-Automatic |
| Down | Full Automatic |
| Left | Burst Fire (if available) |
It’s important to note that not all AR-15s come with full automatic capabilities. The presence of the burst fire mode depends on the specific firearm and its legal classification.
Selector Switch Operation
Operating the selector switch is straightforward. To change the mode of fire, the user simply rotates the switch to the desired position. The selector switch is typically located on the left side of the lower receiver, making it easily accessible to the shooter’s dominant hand.
Significance of the Selector Switch
The selector switch is a critical component of the AR-15, as it allows the user to quickly and efficiently switch between different modes of fire. This versatility is particularly valuable in various scenarios, such as law enforcement, military, and recreational shooting.
Selector Switch Maintenance
Like any other firearm component, the selector switch requires regular maintenance to ensure proper functioning. Here are a few tips for maintaining the selector switch:
- Keep the switch clean and free of debris.
- Apply a small amount of lubricant to the switch and its surrounding area.
- Check for any signs of wear or damage and replace the switch if necessary.
Selector Switch Replacement
In some cases, the selector switch may need to be replaced due to wear and tear or damage. Replacing the selector switch is a relatively straightforward process, but it’s important to use the correct part for your specific firearm. Here’s a general guide for replacing the selector switch:
- Disassemble the lower receiver to access the selector switch.
- Remove the old selector switch by pulling it out of its housing.
- Insert the new selector switch into the housing and secure it in place.
- Reassemble the lower receiver and test the selector switch to ensure proper operation.
It’s always recommended to consult a professional or refer to the firearm’s manual for specific instructions on replacing the selector switch.
Conclusion
The round button, or selector switch, on the AR-15 is a crucial component that allows the user to toggle between different modes of fire. Understanding its functionality, operation, and maintenance is essential for anyone owning or using an AR-15. By taking proper care of the selector switch, you can ensure the reliable performance of your firearm.
