Now available from Otis Technology: Mongoose cleaning brushes. These brushes are precision-made with no undercut, for greater durability and more efficient cleaning. They’re available for a variety of handgun and rifle calibers. Also new from Otis: the TRS Free Floating Carbine Quad Rail. This quad rail is made of T6 titanium and hard-coat anodized, for greater durability and performance. Its turned rail system ensures repeatability. Find it in the Online Catalog section of the RSR Group, Inc. Web site.