brands .
33XC and larger need the Hardened Dowels Please note that this product does not fit other Magpul stocks.We are not affiliated, associated, authorized, endorsed by, or in any way officially connected with the Magpul Industries Corp.338 and smaller calibers will use the Standard dowels . A 'vertical grip- like the LSP Vertical Adjustable Grip' is required as 2+ clearance is needed between the rear of grip and the front of the ABR.