GG&G, Inc., +2 Mag Extension, Fits Benelli M2, Anodized Finish, Black WARNING: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov. Perfect for Military, Law Enforcement and Home Defense use Fits 12ga Benelli M2 shotguns When installed properly, the solid steel ratchet base on the Benelli M2 mag tube extension nut, securely retains the barrel under recoil Product Description The GG&G Benelli M2 Magazine Extensions are easy to install as long as you have a working knowledge of how to break down your shotgun to perform maintenance procedures. No modification to the shotgun required.