gave defiance a call to get a lower total moa rail. i have a 30 on but a zero would do so i figured id pick up a 0 and save my scope adjustments so it didnnt have to be bottomed out. Ansd it was seriously bottmed out. i had 2 clicks till mechanical stop left lol. I gave them my SN and asked where to order. they responded that its 100 plus 10 shipping for 0-60 moa in 10 moa increments. Once i said ill take a 0, how do i pay? they repsonded with we happen to have a 10 moa sitting here, if its ok we will ship it to you. Great, i say again, how do i pay? Free of charge, this ones on us. Thanks defiance, you deserve a thumbs up for that solid.