MTECH XTREME BALLISTIC BLUE Spring Assisted Opening Flipper Pocket Folding Knife MTECH XTREME BALLISTIC BLUE Spring Assisted Opening Flipper Pocket Folding Knife. MTECH XTREME BALLISTIC Spring Assisted opening knife. 4.75" closed. 3.75" 2-TONE HALF SERRATED STAINLESS STEEL BLADE. BLACK / BLUE ALUMINUM HANDLE WITH TEXTURE. Includes pocket clip. This knife comes brand new in box.