CMMG AR15 Carbine Buffer Assembly - CMMG AR15 Carbine Buffer, must be used with AR15 Carbine Action Spring and with M4/Carbine length buffer tubes as well as our Fastback Receiver Extension. Complete Carbine AR15 Buffer Tube Kit also available.; Meets or exceeds mil-spec.; All CMMG products come with Lifetime Quality Guarantee; Specifications Weight : 2.95oz - 3.2oz; - At Sportsman's Warehouse, we live for the thrill of the great outdoors. Whether you're hunting, fishing, camping, backpacking, or shooting, having the right gear is key to making every moment unforgettable. That's why we bring you only the highest quality, trusted brands-because your outdoor experiences deserve the best. From expert advice to quality gear and community events, Sportsman's Warehouse is more than a store-we're your partner on every journey. Come explore with us and experience the difference passion makes.