Samson MP5 Bufferless Receiver Extension Features The Samson Bufferless Receiver Extension is machined from aluminum and finished in black giving it a durable corrosion resistant surface suited to regular handling and use. Built for compatibility with Mil-Spec AR-15 lowers this extension offers builders an alternative configuration to a traditional buffer tube and spring assembly. Its 7.25 overall length and 1.44 height are engineered to integrate properly with Mil-Spec receiver dimensions ensuring a precise fit without additional machining. This makes it a straightforward option for builders working from standard Mil-Spec components. At just 10.20 oz the extension keeps added weight to the rear of the rifle to a minimum helping maintain balanced handling characteristics on a completed build. Aluminum construction provides the strength needed for a structural receiver component while keeping the overall package light. Builders working on custom or specialized AR-15 configurations that call for a bufferless rear end will find this extension a precise Mil-Spec compatible solution. For AR-15 builders seeking this specific rear-end configuration the Samson Bufferless Receiver Extension is available for sale at GrabAGun. Samson MP5 Bufferless Receiver Extension Specifications Manufacturer: Samson Model: Bufferless Receiver Extension Color: Black Material: Aluminum Compatible Hosts: Mil-Spec AR-15 Overall Length: 7.25 Height: 1.44 Weight: 10.20 oz Available At: GrabAGun