Carry more ammunition "at the ready": Professional operators who are unwilling to sacrifice quality, performance, and durability, will find Mesa Tactical's polymer shotshell carriers to be an especially attractive and economical alternative to the low-cost consumer grade plastic shell holders offered by competitors. SureShellA(R) Polymer Shotshell Carriers are made from durable, impact resistant polymer. This shotshell carrier system, available in a six shell configuration, features shell holders injection molded from glass filled polymer, secured to the receiver by a lightweight aluminum back plate with brass threaded inserts. The SureShell Polymer Carrier also include Mfg: Mesa Tactical Products SPECS: Injection molded from glass filled polymer, lightweight aluminum backplate, matte black. For 12 gauge only. All models include mounting hardware, rubber gasket, and installation instructions. Right Hand models only. Remington Sidemount fits models 870/1100/11-87 (may require modification t