The R8 barrel option caliber .22 lr in combination with a newly designed magazine unit and bolt head allows you to intensively train with the rifle you are used to ?�� also on those shooting ranges that are only open to small bore rifles. A further advantage: the very low costs for ammunition. The small bore kit comprises the R8 exchangeable barrel .22 lr, the magazine insert with a capacity of 6 cartridges and the small bore bolt head.