Troy Industries' Battle Rail Covers are engineered to survive the most extreme conditions. Constructed from durable, heat- & chemical-resistant synthetic polymer resin, the Troy Battle Rail Cover quickly and easily slides onto a 1913 Picatinny Rail and locks into place with a built-in retaining clip. No tools required. The Battle Rail Cover protects unused rail space from damage and is more comfortable to grasp than a bare handguard. Made in the USA.