AR15/AR10 base pads extend magazine capacity and improve grip for fast, positive reloads in 3-Gun and PCC divisions where rifle stage time is often decided by reload speed. Arredondo, Lancer, and TTI extensions are built to fit standard AR15 and AR10 polymer and metal magazine bodies without interfering with bolt catch function or magwell insertion. These extensions add usable capacity within 3-Gun and PCC division rules while giving the support hand a larger, more consistent surface to grab during a magazine change. Compatible with popular magazine bodies including Magpul PMAG and Lancer L5AWM platforms, sized to standard AR-pattern magazine catches so they don't require any modification to the magazine or the rifle's mag well. PCC shooters running rifle-caliber-pattern AR magazines also use these extensions for reload consistency, particularly on stages with heavy rifle-to-rifle transitions. Extended base pads also help magazines seat cleanly when slamming a fresh mag into the well at speed. Fast same-day shipping on most orders at Shooters Connection.