The term "full auto AR-15 hammer" can be misleading. A standard AR-15 semi-automatic rifle uses a different hammer mechanism than a fully automatic weapon. Understanding the distinctions is crucial for both safety and legal compliance. This article will delve into the mechanics of AR-15 hammers, the differences between semi-automatic and fully automatic firing, and the legal restrictions surrounding fully automatic firearms.
Semi-Automatic AR-15 Hammer Functionality
The hammer in a semi-automatic AR-15 is a crucial component of the firearm's firing mechanism. It's responsible for striking the firing pin, igniting the primer, and propelling the bullet down the barrel. Each trigger pull results in one round being fired. The hammer's action is controlled by the trigger, sear, and hammer spring. When the trigger is pulled, the sear releases the hammer, allowing it to strike the firing pin. The bolt carrier group then cycles, ejecting the spent casing and chambering a new round. This entire process is repeated with each trigger pull.
Key Components Interacting with the Hammer:
- Trigger: Initiates the firing sequence.
- Sear: A safety mechanism that holds the hammer back until the trigger is pulled.
- Hammer Spring: Provides the force necessary to drive the hammer forward.
- Firing Pin: The component that ignites the primer in the cartridge.
- Bolt Carrier Group: The moving part that ejects spent casings and chambers new rounds.
The Difference Between Semi-Automatic and Full-Automatic Fire
The critical distinction lies in the firing mechanism's ability to continue firing as long as the trigger is depressed. A semi-automatic weapon fires one round per trigger pull. A fully automatic weapon, conversely, fires continuously as long as the trigger is held. This requires significant modifications to the firearm's internal components, including a different hammer design and modifications to the fire control group. This is often achieved through selective-fire mechanisms which allow the user to switch between semi-automatic and fully automatic modes.
Legality of Full-Auto AR-15s and Related Parts
The legality of owning and possessing fully automatic firearms, including modified AR-15s, is strictly regulated by federal and state laws. In the United States, the National Firearms Act (NFA) of 1934 heavily restricts the ownership of machine guns. This includes a significant tax stamp and a rigorous background check process. Furthermore, many states have additional regulations governing the ownership and use of fully automatic weapons. It's crucial to thoroughly research and understand the specific laws in your jurisdiction before attempting to acquire or modify any firearm. Improper modifications to a semi-automatic weapon to make it fully automatic is illegal and carries severe penalties.
Conclusion
While a standard AR-15 utilizes a hammer in its firing mechanism, the concept of a "full-auto AR-15 hammer" is often a reference to modifications needed to convert a semi-automatic weapon to fully automatic fire. This process is illegal in most jurisdictions without the proper licensing and paperwork. Always prioritize safe gun handling and remain fully informed about all applicable laws and regulations concerning firearms. This information is for educational purposes only and does not constitute legal advice. Consult with a legal professional for specific guidance regarding firearms laws in your area.
