The GG&G Remington 870 Magazine Tube Extension is easy to install as long as you have a working knowledge of how to break down your shotgun to perform maintenance procedures. These 870 Mag Tube Extensions attach easily without modification to the shotgun.

Features :

• Fits 12ga Remington 870, 1100 and 1187 shotguns only
• Perfect for Military, Law Enforcement and Home Defense use
• When installed properly, the solid steel ratchet base on the 870 mag tube extension nut, securely retains the barrel under recoil