The Magpul PMAG is a high-quality factory replacement magazine designed specifically for your Ruger AR-15 platform rifle.Compatible with AR-15 pattern rifles chambered in 5.56 NATO this magazine holds 10 rounds of ammunition. Crafted by Magpul using premium materials it features a durable matte black finish.As a Magpul product made for Ruger you can trust that this magazine meets and exceeds the factory specifications for fit and performance.It is engineered to function flawlessly ensuring the same reliability as the original magazine that came with your firearm.Features / Specs223/5.56/300 Blackout10 Rounds CapacityPolymer MagazineDetachable StyleHigh Quality FollowerHigh Quality SpringBlack FinishMade by MagpulFirearm Fitment:AR-15 Pattern Models (SR-556 and AR-556)