I have six of these bad boys, new and never installed. These retail for $30 a piece. These pads are made from 6061 aluminum and provide an increased magazine capacity. They are internally very efficient and simple to install. Used with a Grams kit, you can increase the magazine capacity further. Henning Competition Magazine Base Pads - HenningShop.com // Professional Firearms Products Henning Magazine Base Pad H500 Looking to get $20 a piece for them. That's $10 savings off retail. Buy all 6 (which I prefer) for $100. If you buy all 6 I will ship to the lower 48 at my expense.