The Mesa Tactical LEO Gen II telescoping stock adapter for the Mossberg 500 is the company’s basic, best-selling way to put an AR-15 style adjustable buttstock and pistol grip on a pump shotgun (brand part no. 92630). The factory stock comes off and the adapter takes its place at the rear of the receiver, mimicking the rear of an AR-15 lower so that an AR-15 receiver extension tube can thread into it. The stock elevation allows the use of iron sights or even the bead sight. This SKU is the adapter alone, so the extension tube, buttstock and grip are separate purchases. It suits a Mossberg 500 owner building a home defense or tactical shotgun with adjustable length of pull.

Key Specifications

• Fit is the Mossberg 500 in 12 and 20 gauge, which is the shotgun this SKU is listed for.
• The adapter is investment cast aircraft grade aluminum, CNC machined for a precise fit.
• The finish is black powdercoat, a tough, chemical resistant coating.
• It mimics the rear of an AR-15 lower receiver, so an AR-15 receiver extension tube threads into it.
• It accepts AR-15 telescoping buttstocks and pistol grips, which are not included with this SKU.
• A telescoping stock gives an adjustable length of pull to fit the shooter or to work with body armor and other equipment.
• The stock elevation is set so iron sights or the bead sight stay usable.
• Sling attachment points are included on the adapter.
• Installation needs no gunsmithing, according to Mesa Tactical.
• The adapter does not include a locking nut (#92810) or a push button sling swivel (#91190), which Mesa Tactical sells separately.

Frequently Asked Questions

Does this include a buttstock and pistol grip? No. This SKU is the stock adapter only. You supply the AR-15 receiver extension tube, telescoping buttstock and pistol grip, and Mesa Tactical also notes that it does not include a locking nut (#92810) or a push button sling swivel (#91190).

Can I still use the iron sights or bead sight? Yes. Mesa Tactical says the LEO adapter features an optimal stock elevation that allows the use of iron sights or even the bead sight.

Does it need gunsmithing? No. Mesa Tactical lists no gunsmithing required for its stock adapter kits.

Buy the Mesa Tactical LEO Gen II Telescoping Stock Adapter, Mossberg 500, 12/20 GA

The LEO adapter is the starting point for a pump shotgun that handles like an AR, and everything downstream of it can be picked to suit the shooter. Order it from our Lubbock, Texas gun shop for fast, insured shipping, and see more other shotgun accessories and parts while you are here.