The allure of full-auto capabilities in an AR-15 platform is undeniable. While legally acquiring a fully automatic AR-15 is complex and heavily regulated, the market offers a compelling alternative: the full-auto AR-15 drop-in trigger. This guide will explore these triggers, their functionality, legality, and crucial considerations before installation and use.
Understanding Full-Auto AR-15 Drop-In Triggers
A full-auto drop-in trigger is designed to replace the standard semi-automatic trigger group in an AR-15 rifle, modifying its firing mechanism to allow for continuous firing as long as the trigger is depressed. Unlike fully automatic firearms registered under the National Firearms Act (NFA), these triggers often operate by utilizing a different firing mechanism, frequently employing a binary trigger system, or other rapid-fire mechanisms to mimic full-auto functionality. Crucially, these triggers do not transform your AR-15 into a registered machine gun.
How They Work
These triggers achieve rapid firing through various mechanical means. Some popular methods include:
- Binary Triggers: These fire once on the trigger pull and again on the trigger release. This provides a rapid, two-shot burst with each trigger actuation.
- Three-Round Burst Triggers: These fire three rounds with a single pull of the trigger.
- Other Rapid-Fire Mechanisms: Some less common designs employ other innovative mechanical solutions to achieve a high rate of fire.
It is important to note that these are not truly full-auto in the sense of sustained, uninterrupted fire like a registered machine gun. The rate of fire is typically limited by the trigger mechanism and the speed at which the bolt carrier group can cycle.
Legality and Regulations
The legality of full-auto AR-15 drop-in triggers varies significantly by location. Always check your local, state, and federal laws before purchasing or installing any such trigger. Many jurisdictions have strict regulations concerning rapid-fire mechanisms, even those that don't technically convert a firearm into a registered machine gun. Possession or use of these triggers could result in significant legal penalties.
Considerations Before Installation
Before considering the installation of a full-auto drop-in trigger, carefully assess the following:
- Legal Implications: Thoroughly research the legality in your area. Ignorance of the law is not a defense.
- Safety: These triggers significantly increase the rate of fire, demanding heightened safety awareness and proficiency. Improper handling can lead to dangerous situations.
- Reliability: The reliability of aftermarket triggers can vary. Thoroughly research the manufacturer and reviews before purchasing.
- Installation: Installation requires mechanical aptitude and precision. Incorrect installation can damage the firearm or create unsafe conditions.
Choosing the Right Full-Auto Drop-In Trigger
Selecting a reputable manufacturer is paramount. Research different brands and read reviews to assess their performance and reliability. Consider features like:
- Trigger Pull Weight: Find a weight that is comfortable and suitable for your shooting style.
- Overtravel: Minimize overtravel for improved accuracy.
- Creep: Look for minimal creep for a cleaner trigger break.
Conclusion
Full-auto AR-15 drop-in triggers offer a way to experience a faster rate of fire within the AR-15 platform. However, understanding their legal implications, safety concerns, and installation requirements is critical. Always prioritize safety and legal compliance before purchasing or installing any modification to your firearm. Remember that ignorance of the law is not a defense, and misuse can have severe consequences. Consult with legal and firearms experts to ensure you are acting within the bounds of the law.
