SOG Pentagon FX Daggers

Every knife in the SOG Pentagon FX series is built with S35VN stainless steel, providing a professional-grade balance of edge retention, toughness, and corrosion resistance. This high-end steel ensures that the double-edged blades maintain their performance during hard-use tactical applications.

The SOG Pentagon FX series includes three primary blade lengths to suit different needs: the compact 3.41-inch Covert, the 4.77-inch standard model, and the 5.75-inch Elite variant. This variety allows users to select the appropriate size for everything from deep concealment to full-sized field use.

Yes, all models in the SOG Pentagon FX series feature a true double-edged dagger profile. The symmetrical blade geometry provides dual cutting edges and a sharp piercing tip, following the DNA of classic fighting knives like the Fairbairn-Sykes.

The SOG Pentagon FX series primarily uses G10 handle scales, available in colors like Black and Flat Dark Earth, though the Elite variant features Micarta handles. All versions include ergonomic thumb pads on either side of the handle to provide a secure anchoring point for a more controlled grip.

The series features highly modular sheaths with multiple mounting options, including the Universal Mounting System (UMS) for MOLLE gear or belt carry. Full-sized models include an additional rubber-like retention strap for security, while the Covert version uses a J-clip suitable for pocket or boot carry.

The SOG Pentagon FX Covert is specifically designed for discreet carry with its smaller 3.41-inch blade and slim profile. Its sheath system is optimized for accessibility as a boot knife or inside the pocket, making it an excellent choice for those requiring a concealable fixed blade.