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 distinction is crucial, both for responsible firearm ownership and navigating the legal complexities surrounding automatic weapons. This article will delve into the mechanics of AR-15 hammers, differentiate between semi-automatic and fully automatic systems, and explore the legal ramifications of owning and modifying these firearms.
The AR-15 Semi-Automatic Hammer: A Deep Dive
The heart of the AR-15's firing mechanism is the hammer, a crucial component responsible for striking the firing pin, igniting the primer, and ultimately propelling the bullet. In a semi-automatic AR-15, the hammer is activated by the trigger. Pulling the trigger releases the hammer, which strikes the firing pin, and then the spent casing is ejected, and the next round is loaded through a series of internal actions within the firearm.
Key Components and Function:
- Hammer: This is the component that strikes the firing pin. It's usually made of hardened steel and precisely engineered for reliable function.
- Firing Pin: Located within the bolt carrier group (BCG), this component is struck by the hammer. It pierces the primer, causing ignition.
- Trigger: This is the component that the shooter manipulates to release the hammer.
- Disconnector: This small part prevents the rifle from firing continuously until the trigger is fully released. This is what separates a semi-automatic from a fully automatic weapon.
The semi-automatic action is carefully regulated; one trigger pull equals one shot. Any modification attempting to circumvent this mechanism would drastically change the firearm's function.
Full Auto Functionality: A Different Mechanism
A fully automatic AR-15 (often referred to as an M16) operates differently. While it may share some visual similarities with the semi-automatic AR-15, the internal mechanisms are significantly different. A fully automatic weapon continues to fire as long as the trigger is depressed, unlike its semi-automatic counterpart. This requires a significantly different design, often involving modified components and, crucially, different legal requirements. These modifications usually involve modifying the receiver and incorporating a different fire control group. Simple hammer swaps will not convert a semi-automatic AR-15 into a fully automatic weapon.
Legality of Full Auto AR-15s and Modifications
The legal landscape surrounding fully automatic weapons in the United States is complex and heavily regulated under the National Firearms Act (NFA). Owning and transferring a fully automatic weapon requires registration with the Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF), significant background checks, and the payment of a substantial tax. Furthermore, many states impose additional restrictions on automatic weapons. Modifying a semi-automatic AR-15 to function as a fully automatic weapon is illegal and carries severe penalties, including hefty fines and imprisonment.
Conclusion
Understanding the distinctions between the hammers and firing mechanisms of semi-automatic and fully automatic AR-15s is essential for responsible gun ownership. The conversion of a semi-automatic AR-15 to full automatic fire is a serious offense with severe legal consequences. This information is intended for educational purposes and should not be construed as an endorsement of any modifications or illegal activities. Always adhere to all federal, state, and local laws concerning firearms. If you have questions or concerns about firearms legislation, consult with a legal professional specializing in firearms law.
