CMMG Fastback Receiver Extension Mil-Spec

Description The CMMG Fastback Receiver Extension Mil-Spec is designed for enhanced performance and reliability in your AR Buffer System. Manufactured by CMMG, this high-quality receiver extension is built to Mil-Spec standards, ensuring compatibility with a wide range of AR-15 platforms. Upgrade your firearm with this durable and robust extension, perfect for both tactical and recreational use. Experience improved stability and functionality with this essential component for your AR build.