Mossberg 500A 12 Gauge Pump Action Handguard and rear grip combo.The forearm will fit the Long Action slide that measures 7 3 4" in length. The forend shown in this listing is Mossbergs current production model that does not utilize an inner removable metal slide tube. The current production model utilizes a design where the action bars are integrated into the forend. There is not a removable forend insert, separate metal forend slide assembly, or a nut. The new Maverick 88 Shotgun Forend is a railed forend for the