Troy Ind SRAIMRFD7BT00 Drop In 7" Carbine Length Black Anodized for AR-15, M4

The Troy 7-inch Drop-In Rail is a non free-floating direct replacement for all M4/AR15 Carbine length plastic hand guards with a round end plate. Its patented clamping design ensures a solid mounting platform and provides a true optical mounting platform that increases the modularity and accuracy of the M4.