This Mount Now Fits (as of 12/9/2020):
Mossberg 500 Early (Pre '97)
Mossberg 500 Late (Post '97)
Mossberg 590
Mossberg 835

Previously our Mossberg 500 Pre '97 mount came drilled for and is provided with 6-48 screws and the late model of the mount (Post '97) came drilled for and provided with 8-40 screws. We have since updated our screw design for mounts requiring both sets of screws and we now provide both sets of screws with this one rail. Please bear with us, you may receive an item with old packing cards. If your mount comes with a blue bag (#6-48) and a red bag (#8-40) of screws, you have the proper screws for all year models.

*The Keystone Ring Combo discount is only applicable on retail orders and cannot be combined with any other discounts or promotions. The discount is applied automatically when both items are placed in your cart. No Promo Code Necessary.*

Rail Type: One Piece Picatinny
Machined from: Domestic 6061 T6 Extruded Aluminum
Finish: Matte Black Anodizing
Center Spread: 2.125"
Overall Length: 5.882"
Height: .4" (Top of Receiver to Top of Picatinny)
Weight: 2 oz.
Quick Disconnect Ring Compatible: No
Ambidextrous: Yes
Torque Specs: 20 in/lbs
Mounting Hardware: #6-48 X 1/4" and #8-40 X 1/4" Screws and T-10 Bit Included

Are you looking to install a picatinny rail on your Mossberg 500, Mossberg 590, Mossberg 835, Mossberg 930, or your Mossberg 935? Our picatinny rail for the Mossberg 500, Mossberg 590, Mossberg 835 is easy to install. It only requires 4 screws and a T10 Torx bit, both of which are provided with our picatinny mount. We even send #8-40 and #6-48 screws, so no matter when your Mossberg shotgun was manufactured, our rail will fit. Just remove any plugs in the receiver that were installed from the factory, place our mount on the receiver, use a dab of blue thread locker and install the screws. Make sure to torque them to 15 in/lbs.

We recommend measuring the hole spacing in your receiver to confirm it matches with the dimensions we have published.

Picatinny cross slots run the full length of the rail, which gives the shooter flexibility when mounting scope rings and other accessories. The channel in the center reduces the overall mass of the mount. Also, in many cases, it will not obstruct usage of factory iron sights. Our one-piece scope mounts are the obvious choice for hunters and tactical shooters alike.

We machine these in our shop using one of our machining centers. After machining, the mounts are tumbled, sand blasted, and Type II anodized for long lasting durability.

Installation: We recommend 20 inch lbs of torque and a drip of blue loctite (loctite is available through our website and is sold separately).

We recommend:
0 MOA - if shooting 0-500 yards
20 MOA - if shooting 500-1000 yards

When zeroing your rifle with a 20 MOA mount, we recommend zeroing at 200 yards.

The entire mount and accessories (from the mounting screws and wrench down to the packaging) are made in the USA.