F TANDEMKROSS Shock Block Bolt Buffer for Ruger 10/22, Black, 0118N0039BLK1 $4.74 0118N0039BLK1 show more like this Dvor F Tandemkross Shock Block Bolt Buffer for Ruger 10/22 $4.74 0118N0039BLK1 show more like this Calculated in Cart Primary Arms