Bohning's A Nock fits small diameter shafts with an ID of .204" (commonly known as 5mm or X Nock). The A Nock features a double-lock throat and raised index. Its throat size is .120" (3.05mm), and each A Nock weighs an average of 7.0 grains (453.6 mg).
Bohning's F Nock fits micro shafts with an ID of .166" (commonly known as 4mm or G Nock) shafts and G UNI Bushing systems. The F Nock features a double-lock throat of .120" (3.05mm). Each F Nock weighs an average of 6.5 grains (421.2 mg).
HOT WATER REVERSIBLE - EXCELLENT FOR ALIGNING AND TUNING BROADHEADS
