Using the popular Boyd's AT-ONE stock as its basis, this 457 Varmint variant makes an ideal trainer for the whole family. With the push of a button, length of pull can be adjusted from 12.5to 14.25. Comb height is similarly adjustable, with 5/8 of rise available. The stiff laminate stock provides a nice, rigid platform from which to work and the 16.5 threaded heavy barrel makes fitting a suppressor easy.