GT Brass Inserts

[WTBJR]

I have read through a few post but really did not come up with a definite answer.

I am currently using Firebolts w/ 2" blazers w/125gr tips and a 25 grain Aftershock booster for a total weight of 404 (313 fps)

I have not been able to find the 22gr aftershocks and I am need of procuring new arrows. I like the results of the 404gr w/170+ out front.

My question is, What 20" flat nock x-bolts will the GT brass insert/weight adjusting/tuning system fit ??

I am looking for a quality bolt and have looked and read about the GT and the Black Eagles and of course know about the Firebolts.

Thanks for any and all help

Bill

[newbie]

The BEA and the GT II's have the same ID .300 . Firebolts are a little bigger some people have used the GT brass up front on them with no issues.