Remington Magazine Extension Kit For 20 Inch Barreled 12 Gauge Adds 3 Shots Parkerized Out of stock. Check back later... Price: $54.95 Notify me when this item is back in stock (log in required) Description Details Reviews Shipping info This 870 12 gauge +3 magazine tube extension kit reliably increases your shotguns capacity. Parkerized Includes Spring and Extension Made in the USA UPC: 047700194226Manufacturer: RemingtonModel: 19422Caliber: 12 gaCategory: Magazine Add-onsOtherStock: 0Unit/Measure: ea This item may be shipped directly to your home address, unless you live in a restricted state.