The ATI tactical shotgun stock side saddle shell carrier holds five 12 gauge shotgun shells. The shotgun stock shell holder fits ATI Tactlite shotgun stocks with the cheek rest attached. It mounts to the cheek rest while still allowing adjustment of the cheek rest. Military type III hard anodized, 6061 T6 aluminum mounting bar. It can be added to either side of the stock. Limited lifetime warranty. Manufactured in the USA, It fits ATI Tact Lite stocks only.