Hey Tes, I have both stocks for my M1A; one fully cartouched by the military inspectors in beautiful red-toned walnut,then for outside shooting w/humidity or inclement weather I have the issued fibreglass stock w/vented handguard.Have shot in the rain and driving snow with no worries about the adverse effects of moisture to the 'glass stock,plus no worries or guessing about changing bullet impact w/syn. stock. Get both and enjoy ! By the way,those nicely figured and colored (stained) walnut stocks are getting more expensive as time goes on. Now's the time to get one. BILL:2guns: