High-tube with mounting points for Picatinny rails, SureShell shotshell carriers and other accessories, are manufactured for the Mossberg 500/590. They are multi-function single-point mounting devices which form the core of Mesa Tactical's systems approach to tactical pump shotgun conversions.
Accessory mounting points on the sides of the High-tube and Low-tube aluminum adapters accept Picatinny rails, flush-cup sling swivels or Mesa Tactical shell carriers. Tactical lights, for example, can be mounted to either side of the shotgun receiver. Aluminum covers keep dirt and mud out of unused sling swivel holes and accessory mounts, which are fitted with HeliCoil stainless steel thread inserts for strength and long life.
High-tube adapters share the proportions of an AR-15 and include a Picatinny rail on which to mount optics (note: High-tube adapters cannot be used without rail-mounted sights of some kind).
Mesa Tactical is a pioneer in the development of telescoping stocks for tactical shotguns. Telescoping stocks are necessary for operators wearing body armor, or for smaller statured shooters; a telescoping stock provides the length of pull the situation demands.
The concept behind the telescoping stock system is simple: the shotgun's factory stock is replaced by an adapter, to which standard AR-15 grips and telescoping buttstocks can be reliably attached. All of our stock adapters are investment cast aircraft aluminum, which are then CNC machined before being anodized with a Type III Class 2 mil-spec finish.