SADLAK M14/M1A Front Rail, Steel Low Profile with Internal Nutplate MODEL - It enables the rails extraction or substitution without extracting the stock. DIMENSIONS - 3" Length x 3/4" Width x 1/2" Height. FLEXIBILITY - of attaching a clamp-on type Bi-Pod. QUALITY - Interior nut plate provided with the front rail is a lot more powerful compared to other washers and screws. INCLUDED - All hardware and screws have mil-spec. Manganese Phosphate finish.