RE: How much do they weigh?
Blazers weight 5 grains each.
If you are using arrow wraps, they are generally 8-10 grains.
If you are using regular ICS Hunter inserts, they are 21 grains.
If you are using the ICS ViBrake CB inserts, they are 22 grians.
If you are using the ViBrake nocks, they are 20 grains.
If you are using Beman/Easton Super nocks, they are 13 grains.