Product Summary
The KAK Heavy AR-15 Bolt Carrier Extension is specifically engineered for 9mm and .45 ACP builds requiring special subsonic applications. It is designed to work with the Law Tactical AR-15 Folding Stock Adapter, allowing for the necessary internal BCG weight removal. The package includes the required retaining and bumper O-Rings, making it a direct replacement for the factory model. These extensions are designed for quick and easy swapping, providing versatility for different shooting configurations.
