D&H Tactical is a manufacturer of precision aluminum and steel firearm magazines and a proud supporter of the Second Amendment. D&H tactical magazines are made in the US and trusted by allied armed forces around the world. D&H is a large supplier to the OEM firearms market with the D&H Tactical brand and private label ammunition magazines. Features: Nitrocarburized (QPQ) Hostile Environment Finish 17-7PH Spring for Ultimate Protection Against Corrosion D&H Proprietary Follower Caliber: .308 Win / 6.5 Creedmoor Platform: DPMS/ SR-25 AR-10 Material: Carbon Steel Finish: Nitrocarburized (QPQ) Hostile Environment Capacity: 10 Rounds