Tacstar continues their position as a leader in top quality, high tech shotgun accessories with the introduction of carbon fiber magazine extensions.Carbon fiber offers an unbeatable strength to weight ratio.These extensions are about 4 times lighter than traditional steel tubes, however they are much stronger.The carbon fiber offers durability and toughness to go along with light weight, making it the perfect material for extension tubes.The 7 shot extension adds 2 rounds.Capacity: 2rdModel: Mag ExtensionMaterial: Carbon FiberModel Fit: 870,1100,1187Brand Fit: RemingtonCapacity: 2