All GRS Riflestocks in laminated wood - except for the GRS X Eater model - are treated with an oiled finsih. It is important to maintain this finish 2-3 times a year to prevent moisture to enter the laminate. Moisture over time can result in cracking of the laminate wood. Therefore all oiled laminated riflestocks need maintenance as well! We recommend our GRS Maintenance Oil for renewing the oil finish on all GRS Laminated Riflestocks. You can ask your local gunsmith or stock maker on how to refurbish laminated riflestocks or just ask your GRS Dealer for assistance if in doubt about this process.