Troy Mid Length Drop In Battle Rail 9in - Black MRF-D9BT-00. We are an Authorized US Distributor for Troy Rifle Scope Mounts Rings and Bases. The Troy 9-inch Drop In Mid Length BattleRail is a non free floating direct replacement for all M4/M16 carbine plastic hand guards utilizing the mid length gas system. The Troy Patented clamping design ensures a solid mounting platform. The Drop In Mid Length BattleRail provides a true optical mounting platform that increases the modularity and accuracy of the M4. No gunsmithing is required and the unit installs in less than a minute and providing true U.S. Military Specification M1913 rails at 12-3-6 and 9 o'clock. All rail systems are machined from T6061 hardened aircraft aluminum and anodized in MIL-STD Type III Hard Coat in Flat Black or USSOCOM Flat Dark Earth. . Specifications for Troy 9" Mid Length Drop In Battle Rail: Gun Model: AR15 Package Contents: Troy 9" Mid Length Drop In Battle Rail We offer complete line of Troy Rifle Scope Mounts Rings and Bases. For our complete selection of products by Troy on sale please visit our Troy Industries page. For more Rifle Scope Mounts Rings and Bases please visit our Rifle Scope Mounts Rings and Bases store section. Troy Mid Length Drop In Battle Rail 9in - Black MRF-D9BT-00