This Sig Sauer magazine is a direct replacement for your SIG P250 or P320 Full Size. Whether you need a replacement mag or trying to add more to your supply, these manufacturer produced magazines are made to the same specifications and precision as your original. Don't use cheap knock-offs that can fail on you in the most urgent situations, put only the best in the firearm you trust to protect you and the ones you love! For the best selection of Sig Sauer Firearms and firearms accessories at the best prices, shop Palmetto State Armory!