The tab on Easton nocks

[PSD Ryan]

My easton nocks all have a little sliver of plastic on the side. Looked at some older eastons and they had it too. Dont see it on my boning our carbon express nocks. Is it just flashing from the mold? It looks too defined for that. Is it to help index your arrows in the dark? Any other ideas?

[rocky]

Nock index, and Bohning and CX nocks have them also.

[Mike Javi Cooper]

index mark... so you can nock an arrow correctly even in the dark...

[Destry]

i didn't know thats what they were for but thats what i've always used them for i always had it to the left of the cock vane

[bubinga]

index mark... so you can nock an arrow correctly even in the dark...

This

[mharrington]

You got it..............index mark. This helps for knocking them in the dark or in the light if you only use one color fletching.

[Tubby]

Has anyone said Index Mark yet?

[boweye]

The index mark is great! It allows you to use the same color vanes too!

[HawgEnvy]

hello. Mr. Observant,here. I've been shooting for nearly 20yrs. I've never noticed such "tabs". Until I looked after reading this post. Lol I've got em