The Samson Bufferless Receiver Extension (Samson part no. 040616201) is a black aluminum receiver extension built for AR-platform rifles running an alternate recoil system that does not require a traditional buffer and buffer spring. Samson machines the extension to mil-spec dimensions so it threads into a standard AR-15 lower receiver without any special fitting. Because it is designed to work without a conventional buffer, it is intended for builds using a recoil-mitigating system, such as certain gas- or spring-piston setups, rather than a standard direct-impingement buffer tube configuration. It is a purpose-built part for builders running one of these alternate systems who need a compatible receiver extension.

Key Specifications

• Finished in black aluminum.
• Built as a bufferless receiver extension, for use without a standard buffer and spring.
• Threads to mil-spec AR-15 lower receiver dimensions.
• Intended for builds running an alternate recoil-mitigating system.

Frequently Asked Questions

Does this work with a standard buffer and spring? No, it is built for AR builds using an alternate recoil system instead of a conventional buffer.

Does it fit a standard AR-15 lower? Yes, it threads to mil-spec lower receiver dimensions.

Buy the Samson Bufferless Receiver Extension

Complete your alternate recoil-system build with a mil-spec-threaded receiver extension. See more from Samson or shop our full rifle stocks selection. Order it from our Lubbock, Texas gun shop for fast, insured shipping.