Delivering increased kinetic energy for extreme knockdown power, making them ideal for big game hunting, Ravin XK5 500 Grain Arrows are the most premium arrows Ravin offers featuring an incredible straightness tolerance of .001 (inclusive of 100-grain field tip or broadhead) so they're true to target as determined solely by the hunter s acumen. Approved for use with the Ravin R500. Product Features Accuracy: Nothing comes close to Ravin. Rifle-like accuracy built into every product, every shot, every time. Technology: There is no status quo when you forge the path, there is only innovation. Apex Performance: The highest-performance crossbows in the world. Period. Because only the highest standards apply. Product Specifications 6-Pack 500 Grain 100% Pure Carbon Construction Straightness Tolerance: .001" High-Impact Brass Threaded Inserts High-Impact Aluminum Nock Bushings Ravin-Engineered Polymer Nocks 2" High-Profile Offset Vanes