Beiter Insert Nock - 8.23 (Gold Tip NINE.3) (pk/25)Pack of 25 nocks The Beiter 8. 23 insert nock will fit the Gold Tip NINE. 3 series shafts. Beiter nocks are perhaps the best known manufacturers of nocks on the planet. Their selection is vast. The number of colour options is huge. The quality is unparalleled because all Beiter nocks of one size are manufactured in one single mould. This means you get the smallest tolerance between nocks!