We can produce carbon fiber arrows with the specifications you required.
Specifications:6.2*7.5*711(28'')mm, 6.2*7.5*762(30'')mm, 6.2*7.5*813(32'')mm.
Straightness: 0.004''
Spine: 300, 340, 400, 500.
Spine | Length(inch) | ID(inch) | OD(inch) | G.P.I |
300 | 28''-32'' | 0.24'' | 0.296'' | 8.88 |
340 | 28''-32'' | 0.24'' | 0.291'' | 8.21 |
400 | 28''-32'' | 0.24'' | 0.287'' | 7.56 |
500 | 28''-32'' | 0.24'' | 0.285'' | 6.52 |
Materials: carbon fiber.