Die Free Co Dos Boot Magazine Extension Features The Die Free Co Dos Boot is a tool less drop in base plate replacement that adds 2 rounds of capacity to compatible Magpul PMAG GEN M3 magazines. Designed with 20 round magazines in mind the Dos Boot gets the magazine as low to the ground as possible without letting the rifle s grip touch the dirt which is especially useful in prone shooting positions. The contoured convex shape allows smooth positional adjustments as the shooter moves the rifle during use. Though originally designed around the 20 round magazine the Dos Boot is compatible with Magpul PMAG 10 20 30 and 40 round GEN M3 magazines. Built from impact resistant injection molded polymer the Dos Boot is designed to withstand repeated drops and hard use without cracking or failing. Its aggressive tread pattern gives shooters solid contact when grabbing the magazine for a reload improving speed and confidence during a mag change. The Olive Drab Green finish matches common tactical and hunting rifle color schemes while standing apart from an all black build. Made in the USA and sold as a 3 pack the Dos Boot is a practical low cost upgrade for any AR15 shooter running PMAG magazines. Die Free Co Dos Boot Magazine Extension Specifications Manufacturer: Die Free Co Model: Dos Boot Compatible Hosts: Magpul PMAG 10/20/30/40 GEN M3 Color: OD Green Material: Polymer Finish: Matte Capacity Increase: +2 Rounds Quantity: 3 Weight: 6 oz Available At: GrabAGun