Provides the performance of the 100 percent carbon Velocity line, but with a smaller price tag. Straightness tolerance of +- .006â?쳌 and weight tolerance of +- 2 grains. Available in sizes 600 (5.9 GPI), 500 (6.3 GPI), 400 (7.4 GPI), 340 (8.2 GPI), and 300 (8.8 GPI). Includes Accu-Lite nocks and inserts.