Ever have a sand bag get wet, or start leaking on you. This block will not absorb water and there is nothing to leak out. It will not freeze or decompose. A great tool for outdoor ranges.
The shape and contours of the Sight Block allow the shooter of various guns to utilize the block for a stable shooting platform that will not shift when you least expect it. Its a simple tool but will last a lifetime. www.inrangesupplies.com