Combining the reliable flight of a fixed blade with the wound-maximizing cutting diameter of a mechanical, DirtNap Gears BMF Hybrid Broadheads deliver the spot-on performance hunters crave. A proprietary spring blade-retention system remains closed at high speeds and opens instantaneously on contact without use of O-rings or retaining clips. The BMF Hybrid unleashes massive X cuts with pile-driving penetration thanks to 2.25 of cutting surface. Customize the broadheads weight to 100 or 125 gr. using the patented modular weight system. Surgical-sharp 420J2 stainless steel blades. Aircraft-grade 7075 aluminum ferrule. Per 3. Cutting dia: 1-1/4. Wt: 100/125 gr. Cancer and Reproductive Harm- www.P65Warnings.ca.gov. Type: Hybrid Broadheads.