Columbia River Knife & Tool - Crimson Trace CTC RBT (Range Bag Tool). Model: CR8970. 2 5/8" closed. In addition to being a secure carry platform for the two standard CTC sight adjustment Allen wrenches, the RBT is a shooters utility pocket tool. Features 1 3/4" stainless partially serrated blade, flat and Phillips fold-out screwdrivers, plus a bottle opener. The two CTC Allen wrenches are securely held in slots between the stainless InterFrame and black Zytel® scales. Removable stainless pocket/gear clip. A collaboration between CRKT and Crimson Trace®. Designed by Glenn Klecker.