Injection molded of the same durable material used in the magazine body itself, the extended floorplate shape was designed to comfortably accommodate a proper firing grip.  With 2 additional rounds on board, ammunition capacity is now 8 + 1 in the weapon.  Also included is a new longer, smooth feeding heat-treated stainless steel spring, with 100% last-round slide lock backs that are guaranteed. The VTMFP-006 43 +2 Magazine Extension consists of Extended Floorplate, Floorplate Retainer and Stainless Steel Spring.  Kit converts 1 Glock magaizine. Manufacturer recommends gunsmith installation of this item.