Start of lstUrls_of_images_in_html_descriptionProduct Number: 1081029A simple and effective tactical upgrade for 12 gauge Mossberg 500 and 590 shotguns-no gunsmithing needed!Ultra-rigid, this innovative lightweight aluminum unit straddles both sides of the receiver and is crafted with a non-glare anodized finish. The top Picatinny rail can mount a variety of accessories, yet is designed to sit just high enough to allow continued use of the shotgun’s bead sight. Keeping six shells in readiness, the low profile design SideSaddle incorporates TacStar’s proprietary material for durability and secure shell retention.Features & SpecificationsBillet aluminum construction, non-glare hard coat anodizedStraddles both sides of receiver for high rigidity*Raised Picatinny rail on top with 12 slots, retains use of standard bead sightsInnovative new low profile six shell sidesaddleProprietary materials combined to create an ultra-durable shell retention systemWeight: 13 oz.*If your shotgun is equipped with a field grade forend that extends to the sides of the receiver, it will hit the 6-shell sidesaddle and not cycle fully, in this case a replacement MAGPUL or TacStar forend will need to be substitutedEnd of lstUrls_of_images_in_html_description