Galil Magazine adapter. Allows the user to use a standard M4 or AR-15/ M16 Magazine in there .223/5.56 Gaili Rifle. Not for ACE rifles . This is for the original Gaili. Will not work in full auto Gaili SAR as bolt is different. This works with all Standard AR-15/M16 Magazine both metal and synthetic. This adapter is precision engineered and mailed to fit snuggly into the rifle and fit my magazine snuggly to ensure a flawless feed of ammunition into the firearm. magazine adapter is powder coated, and made of the highest quality aluminum alloy 7075 T6 material. Shipping is 9.99 USPS and will ship within 2 business days of payment. Question feel free to contact Veno Associates at 603-986-9516 8am-7pm everyday but Sunday hours on Sunday 10am-4pm text message are a great way to communicate also from the same number.