Kel-tec P-11 Magazine Extension For Smith & Wesson 12 Round Magazine Out of stock. Check back later... $7.90 MSRP Price: $4.03 Notify me when this item is back in stock (log in required) Description Details Reviews Shipping info Hold and carry one (1) extra round. UPC: 640832001181Manufacturer: Kel-tecModel: P11-042Category: OtherMagazine Add-onsStock: 0Unit/Measure: ea This item may be shipped directly to your home address, unless you live in a restricted state.