The Quartermaster QTR-3f has gone through some changes and come out on the other size an improved folding design. It is nearly 40% lighter and features a nearly 30% slimmer profile. The locking mechanism has been upgraded to the highest caliber Titanium Framelock with a dual-purpose steel lock bar insert. This prevents overtravel when disengaging the lock and also keeps the face properly aligned under the blade face during use. The knife features the ORB Pivot System, textured G10 scales, and a reversible tip-up pocket clip. See more info on the knife at www.knifecenter.com.