Shirogorov 111 GEN 5.1 – M390 BLADE – MARBLE CARBON FIBER HANDLE – MRBSShirogorov 111 GEN 5. 1 M390 BLADE MARBLE CARBON FIBER HANDLE MRBS DETAILS 4. 37" stonewashed M390 blade with machined groove 9. 75" overall length Weighs 4. 3 ounces Runs on MRBS (multi row bearing system) Stonewashed Steel hardware and pivot screws 3D machined Marble Carbon Fiber handle scales Tab lock locking mechanism Stonewashed Titanium back spacer Tip up stonewashed Titanium pocket clip