UTAS Orthos Magazine's are standard factory replacement magazines. This magazine is for Orthos Models chambered in 12 Gauge and holds 10 rounds of ammunition. Made from high quality alloy steel, the exterior of the magazine features a matte black finish. Additionally it is worth noting that the magazine is made to UTAS's specifications and tolerances, using the same manufacturing process and materials as the original equipment magazines which shipped with your firearm. This will ensure not only a perfect fit but exceptional operation.