Dual-purpose cover slides on and snaps into place on any Picatinny handguard rail. Protects the machined surfaces while offering a secure, non-slip gripping surface for maximum weapon control. Impact and heat resistant for years of rugged use. SCAR is based on feedback from special forces operators using the new FN SCAR rifle, with a lower profile and more aggressive texture than BGR models. Available in 4" length. Mfg: Tangodown SPECS: Injection-molded polymer resin, Dark Earth. 1-3/8" (3.5cm) wide. Lengths as indicated in table. BGRP accepts SureFire, Insight Technologies, and similar pressure switches measuring approx. 3-1/8" (7.9cm) long x 7/8" (2.2cm) wide or 2-5/16" (5.9cm