Mesa Tactical Barrel Magazine Clamp for Remington 870
Mesa Tactical Magazine Clamps for Remington 870, 1100, and 1187 provide mount points for Picatinny rails, weapon lights and sling attachments near the muzzle of a tactical shotgun. The Magazine Clamps are CNC machined 6061-T6 aluminum, Type III anodized to military specifications. Threaded attachment points feature HeliCoil steel thread inserts for long thread life, even after repeated mounting and removal of accessories.
The Mesa Tactical Magazine Clamp can be used to more securely retain aftermarket or factory magazine extensions, while at the same time offering flexible accessory mounting options near the shotgun muzzle.
Mesa Tactical Magazine clamps for Remington Shotguns are available as a stand-alone unit , with a push-button quick release sling swivel , or with a 3-1/2 inch MIL-STD-1913 Picatinny rail  that can accept standard weapon light mounts. The Barrel clamp  is available with a 3-1/2 inch MIL-STD-1913 Picatinny rail only, and is compatible all of the same Mesa Tactical parts as the Mesa Tactical Magazine Clamp.
The magazine clamp can also be used to mount one inch diameter weapon lights simply by clamping one side to the shotgun barrel and the other side to the light body.