SureShell® Polymer Carrier for Moss 930 (6-Shell, 12-GA)
SureShell Polymer Carriers are injection molded from glass filled polymer, secured to the receiver by a lightweight aluminum back plate with brass threaded inserts. Available only in a six-shell configuration, the polymer carrier also includes an innovative dual rubber friction system that reliably holds shotshells in place. Models are available with and without integral Picatinny rails for mounting optics.
This SureShell Polymer 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 new SureShell Polymer Carrier also includes an innovative dual rubber friction system that reliably holds shotshells in place. Models are available with and without integral Picatinny rails for mounting optics.
The principle difference between one model of SureShell and another, aside from capacity, is the light-weight aluminum backing plate, which is designed to mount the carrier assembly on a particular model of shotgun. Side-mount SureShell shotshell carriers for Mossberg , Remington and Benelli M1 shotguns use the trigger group pin holes to secure the assemblies to the weapon; the Benelli M2 Tactical, Benelli M4/M1014, Benelli SuperNova Tactical and some Mossberg 500/590 versions take advantage of the factory-tapped rail mounting holes in the tops of these shotguns and include integrated Pictanny optics mounting rails; another version with an integrated rail is the saddle-mount design for Remington.
The following is a breakdown of the various components that make up the SureShell Aluminum Carrier system.
Aluminum SureShell Shotshell Carrier
SureShell shotshell carriers are assemblies comprising an aluminum yoke and backing plate and a Santoprene® elastomer tube. The yoke features four to eight vertical bores .700” or .810” in diameter to accept 20-gauge or 12-gauge shotgun shells. The shells are securely retained by the elastomer tube interfering with the bores. In many cases, shells can be confidently retained in a brass down as well as a brass up configuration, though brass up is most secure.
The elastomer used to interfere with the shell bores and thus retain the shells in the SureShell shotshell carrier is made of tough Santoprene thermoplastic. We are required to publish the following message to comply with California’s Proposition 65:
WARNING: This product contains a chemical known to the State of California to cause birth defects or other reproductive harm.
SureShell carriers are assembled at the factory with a black Santoprene elastomer tibe with a shore value, or stiffness, of A64. This has proven to be optimal for most customers and in most situations. However, some customers require a stiffer elastomer and for those operators we have included an alternative white elastomer tube with a shore value of A73. The black elastomer tube can be swapped for the white one if tighter shell retention is required.
The front trigger pin is replaced by custom Chicago screws instead of a standoff with 12 gauge Remington shotguns.
Several platforms use custom fasteners called Chicago screws. These are paired male and female fasteners that, when screwed together, meet at their respective shoulders for a precise fit on whatever platform they are made for (each shotgun platform will use different length Chicago screws). Ideally, when they are tightened against each other, they also secure the shell carrier without pinching the receiver. Two hex keys are provided for each screw size. Sometimes it is necessary to screw the fasteners in from both sides simultaneously.
*It is important to realize that once the Chicago screws are tightened against each other, they aren’t going to get any tighter, and applying too much torque will snap them at the center. It is useful to practice tightening them outside the shotgun before installation, to get a hang for how tight they can get, and also to clean the threads of any dirt or debris.
Adhesive-backed Rubber Gasket
The adhesive-backed rubber gasket material (not included with Saddle Rails or Saddle Mount SureShell assemblies) can optionally be used to keep the backplate screw heads away from the surface finish of your weapon.
Optional SureShell Carriers
The SureShell Aluminum shotshell carriers are milled from 6061-T6 aircraft aluminum, then bead blasted and mil-spec hard anodized for a rugged non-glare finish. They are secured to application-specific brackets, and include high temperature adhesive-backed die-cut rubber gaskets to protect the host shotgun’s finish.
SureShell shotshell carriers are available in three configurations: four-shell, six-shell and eight-shell. The six-shell and eight-shell configurations can be installed on the left side of the receiver, while the four-shell carriers can be installed on either side of the receiver. Carriers can also be installed pointed back toward the stock.
The Adapter Mount SureShell shotshell carrier is designed to be used with shotguns already equipped with the Mesa Tactical High-tube or Lowtube Telescoping Stock Adapter. If you do not already have a Mesa Tactical Telescoping Stock Adapter system installed on your shotgun, this carrier cannot be used. The other Mesa Tactical SureShell carriers described in this guide can be fitted to shotgun receivers without the stock adapter installed.
The Integrated Rail SureShell shotshell carrier design for the Benelli M2 Tactical, Benelli M4/M1014, Benelli SuperNova and Mossberg 500/590 platforms is radically different from the side mount designs. Instead of a stamped backing plate, the shell carrier yoke is attached to a machined bracket with an integral Picatinny (MIL-STD 1913 or NATO STANAG 2324) sight rail.
The design allows the ShotShell assembly to be installed on the top of the shotgun by taking advantage of the factory tapped Picatinny (MIL-STD 1913 or NATO STANAG 2324) rail holes. With the Benelli shotguns, the shell carrier assembly is mounted directly onto the shotgun receiver. With the Mossberg platforms, a steel mounting cleat is first installed and the shell carrier is fastened to the cleat.
These shell carriers mount to the sides of standard M4 SOPMOD buttstocks, to the Urbino Pistol Grip Stock cheek riser, or Benelli pistol grip fixed stock (does not fit Benelli M4 stock or Urbino Tactical stock).
Factory shotgun forends, except “tactical” forends, often feature significantreceiver overlap when the bolt is pulled back. These forends will need to be cut down or replaced with aftermarket “tactical” forends to be used with some SureShell shotshell carriers. Before you install a SureShell shotshell carrier, measure your forend’s receiver overlap and compare it to the furthest forward point of the shotshell carrier. Then cut any potential overlap or interference off the end of theforend with a miter saw or a rotary arm saw for a perfect fit.
The SureShell Polymer Shotshell Carrier is available for the following 12 gauge shotgun platforms:
- Remington 870, Remington 1100, Remington 11-87
- Benelli M1, Benelli M2, Benelli M3, Benelli M4, and Benelli SuperNova
- Mossberg 500/590, Mossberg 930
- Maverick 88
The side mount system of our shotgun SureShell polymer shotshell carriers for the Mossberg 500/590 substitutes two custom-machined steel Chicago screws for the trigger pin. At the front of the mounting plate, custom retaining steel hardware is used with an elongated extractor screw and a machined key hole in the plate. The Mossberg 930 mounting system is similar, except it uses two sets of Chicago screws in place of the two trigger pins. The mounting plate was designed not to obscure the receiver serial number to make it easier for armorers to inventory their weapons.
SureShell polymer shotshell carriers for the Mossberg fit on the left side of the receiver only. You must use a tactical forend that does not significantly overlap the receiver, or a factory forend that is cut down appropriately. SureFire forends will work fine with no alterations.
All Mesa Tactical products are made in the USA of high quality materials and include LIFETIME WARRANTY. Mesa Tactical warrants that all products are free from defective material and workmanship and, subject to the conditions set forth below, agrees to repair or replace any part of a product that proves defective by reason of improper workmanship or materials without charge for parts and labor. In no event will Mesa Tactical be liable for damages, lost revenue, lost wages, lost savings or any other incidental or consequential damages arising from purchase, use or inability to use this product. No express or implied warranty is madefor Mesa Tactical product damaged by accidents, misuse, natural or personal disaster, or any unauthorized disassembly, repair or modification. Mesa Tactical’s warranty covers only repair or replacement of defective Mesa Tactical products.
*No export license is required for most international destinations.
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