Mesa Tactical Polymer Schell Carrier and Rail for Benelli M4 (6-Shell, 12-GA, 5½ in)
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.
The saddle rails feature Picatinny rails machined from aircraft grade 6061-T6 aluminum, which are mil-spec hard anodized and provide an extremely durable non-glare matte finish. The basic saddle rail design provides a robust mounting platform suitable for mounting a variety of optical sights, while a second version, which is nearly identical to the basic version, also includes a Mesa Tactical six shell SureShell polymer shotshell carrier mounted on the left side of the receiver. Both versions are manufactured in compliance with MIL-STD-1913 Picatinny specifications, and no gunsmithing is required for installation. These new saddle rails offer a perfect solution for adding optical sights and Mesa Tactical SureShell shotshell carriers to Remington shotguns equipped with Mesa Tactical’s new LEO telescoping stock and pistol grip system.
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 Mesa Tactical 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.
BENELLI RAIL HOLE PATTERN
Many customers will purchase SureShell carriers with rails for Benelli M1 shotguns that have not been drilled and tapped at the factory for an optics rail, but which will be drilled and tapped at home or by a gunsmith.
We recommend this work be performed only on those shotguns that are fully radiused at the top of the receivers (ie, they do not have a flat running down the top of the receiver). This is because the flat reduces number of threads that the mounting screws will be able to engage, and thus could reduce the reliability of the mount. It is also best that the work be performed by an experienced gunsmith who has the necessary tools and skills to do a proper job.
The mounting screws for the Benelli M1, Benelli M2 Tactical and Benelli M4 SureShell carriers with rails are patterned on the factory screws for the Benelli M4’s optics rail. These use an unusual #8-40 thread.
The Benelli M4 and Benelli SuperNova have different hole patterns; the Benelli SuperNova uses a different fastener.
Aluminum SureShell Carrier with Integrated Picatinny Rail
SureShell Carriers with Integrated Rails feature a MIL-STD-1913 (NATO STANAG 4694) Picatinny sight rail along the top, and a six-shot SureShell polymer shotshell carrier yoke on the left side of the receiver. The rail is notched at the rear to accommodate Scattergun/Wilson style ghost ring sights. Mesa Tactical SureShell shotshell carriers are assemblies comprising a polymer yoke and backing plate and a Santoprene® elastomer tube. The yoke features four to eight vertical bores .700” or .810” in diameter to accept 12-gauge shotgun shells. The yoke features six vertical bores .810” in diameter to accept 12-gauge shotgun shells. The shells are securely retained by an innovative dual rubber friction system that reliably holds shotshells in place. 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.
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.
OTHER TYPES OF SURESHELL CARRIERS
SureShell Aluminum ShotShell Carrier
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.
Mesa Tactical 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.
Adapter Mount SureShell Aluminum Carrier
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.
Shell Carriers with Integrated Picatinny Rails
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.
Stock Mount Shell Carriers
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 the forend with a miter saw or a rotary arm saw for a perfect fit.
While the Benelli M2 Tactical semi-automatic and Benelli SuperNova® pump-action shotgun feature factory-tapped rail mounting holes in the top of the receiver, the Benelli M4 and M1014 are shipped with a top Picatinny sight rail. These provided us with an opportunity to develop SureShell polymer shotshell carrier mounting solutions for Benelli shotguns that are streamlined and very robust.
Receiver mount SureShell aluminum shotshell carriers for the Benelli M2, M4 and M1014 feature mounting brackets with integral top Picatinny sight rails. These brackets are secured to the weapon using the top mounting screw holes. The SureShell polymer shotshell carriers are thus slung on the left side of the receiver, securely fastened at the top. No other shell carrier mounting method is as secure or looks as good. SureShell polymer shotshell carriers for the Benelli M2 Tactical can be installed on Benelli M1 shotguns with round-top receivers by tapping the top of the shotgun receiver with #8-40 threads. Consult a gunsmith.
Extra weight on the weapon may adversely affect the reliable cycling of inertia-operated shotguns such as the Benelli M1 or M2 when used with low-recoil ammunition. The Benelli M4 is gas-operated and has no such cycling sensitivity.
No other shell carrier mounting method is as secure or looks as good. No gunsmithing is required to install the SureShell Carrier with Integrated Rail, except for optional forend alterations as described above. Picatinny Rails are also available without the shell carriers.
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.
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The distinction between inferior quality and premium Benelli M4 Side Saddle is undeniable. At MSP, we only offer Benelli Accessories from the most trusted brands like Mesa Tactical Benelli M4. Buy with confidence that we stand behind the product we sell.
Customer Ratings & Reviews
Excellent quality Benelli m4 top rail
Fit and finish is excellent. She’ll retention is great and appreciate the spare parts
Benelli m4 Rail Mount & Carrier
Super easy to attach. May need to slightly grease each slit for the shot to be removed easier. Maybe silicone.
Mesa benelli m4 Picatinny Rail & Side shell carrier
The construction and fit were outstanding. Have a 4 star rating because 2 of the six shell holders had protruding rubber making for a very tight fit, which will be difficult in a life/death situation.