Mesa Tactical LEO Gen II Telescoping Stock Adapter Mossberg 500/590 - 92630

Mesa Tactical LEO Gen II Telescoping Stock Adapter For Moss 500 590A1 Mav88 12 GA And 20 GA Black 92630 UPC 878405005506

Product Description

The Mesa Tactical LEO Gen II Telescoping Stock Adapter for Mossberg 500, 590A1, and Maverick 88 (92630) is a heavy-duty conversion system engineered to adapt AR-15 collapsible stocks and pistol grips onto Mossberg 12-gauge and 20-gauge shotguns. Precision investment-cast from aircraft-grade aluminum and finished in a durable matte black anodized coating, this second-generation stock adapter allows law enforcement officers, home defense stagers, and tactical shooters to fully customize length-of-pull and grip ergonomics.

Redesigned from the ground up, the Gen II architecture lowers the stock elevation placement relative to the receiver top. This streamlined profile enables comfortable bead sight and iron sight alignment without requiring elevated cheek risers, while lowering the bore axis to reduce felt muzzle rise. The adapter incorporates dual ambidextrous Quick-Detach (QD) push-button sling swivel attachment points machined directly into the sides for versatile tactical sling routing.

Engineered for seamless bolt-on fitment, the 92630 adapter accepts standard AR-15 commercial or mil-spec receiver extension buffer tubes and AR-15 pistol grips (without beavertails). Backed by Mesa Tactical's Lifetime Warranty, it transforms traditional sporting shotguns into highly adaptable tactical platforms.

Armorer Bench Notes & Real-World Staging Guidance:
Fitment Matrix: Fits Mossberg 500, 500 Flex, 590, 590A1, 590 Shockwave, and Maverick 88 pump-action shotguns in both 12-Gauge and 20-Gauge configurations. Accepts standard AR-15 buffer tubes and AR-15 pistol grips without rear top beavertail overhang. (Note: Using an AR pistol grip on Mossberg platforms requires stretching your thumb further up to reach the top tang safety switch compared to pistol grip receivers).

1. Perform a complete firearm safety check: open the action, clear the magazine tube, and visually and physically inspect the chamber to verify zero live shell casings are present.
2. Unscrew the long stock bolt using a socket wrench and remove the factory traditional shotgun stock from the receiver.
3. Align the Mesa Tactical LEO Gen II adapter body flush against the rear of the Mossberg aluminum receiver.
4. Insert the provided heavy-duty mounting bolt through the interior adapter cavity and torque into the receiver stock threads to 35–40 in-lbs.
5. Thread your preferred AR-15 buffer tube and castle nut into the rear threaded port of the adapter until fully seated.
6. Install a non-beavertail AR-15 pistol grip onto the lower grip tang, securing it with the standard grip screw and washer.
7. Perform dry-fire function checks to verify safety lever engagement, action slide freedom, and stock lockup.

Key Features

• Low-Profile Optics & Sight Alignment: Lowered stock placement allows comfortable alignment with bead, ghost ring, and red dot sights without awkward cheek risers.
• Investment-Cast Aircraft Aluminum: Ultra-rugged aluminum construction built to withstand severe law enforcement duty use and heavy 12-gauge recoil.
• AR-15 Component Versatility: Accepts standard AR-15 mil-spec or commercial buffer tubes, collapsible stocks, and standard pistol grips.
• Integrated Dual QD Sling Attachments: Machined ambidextrous push-button QD sling swivel sockets allow rapid sling mounting and transition setups.
• Mesa Tactical Lifetime Warranty: Backed by Mesa Tactical's unconditional factory lifetime warranty against manufacturing defects.
• Matte Black Hardcoat Finish: Non-reflective black anodized coating matches factory Mossberg receiver finishes for a clean tactical appearance.

Product Specifications

• Brand: Mesa Tactical
• Model/Series: LEO Gen II Telescoping Stock Adapter
• MPN / SKU: 92630
• UPC: 878405005506
• Platform Compatibility: Mossberg 500 / 590 / 590A1 / Maverick 88 (12-GA & 20-GA)
• Grip & Stock Compatibility: Standard AR-15 Buffer Tubes & Non-Beavertail Pistol Grips
• Material: Precision Cast Aircraft-Grade Aluminum
• Finish / Color: Matte Black Hardcoat Anodized
• Warranty: Mesa Tactical Limited Lifetime Warranty
• Weight: 8.2 oz
• Country of Origin: USA