ZeroBravo S.M.A.R.T. Card

S.M.A.R.T.(Simple Marksman Adjustment Reference Table) Card is great for calculating how much to adjust on your scope is needed. It works for M16, BUIS, DBAL, ACOG and some more.

Price: $14.95

https://www.zerobravo.com/shop/hard-goods/SC0816.html