





Availability: In Stock
The Mesa Leo Tele Stock Adapter for Mossberg 500 G2 transforms your shotgun into a modern, modular platform by letting you bolt on standard AR-15 adjustable stocks and pistol grips. If you run a Mossberg 500 or 590 and want the ergonomics, compactness, and control of an AR-pattern rifle without replacing your shotgun, this adapter does the heavy lifting—no gunsmithing required. It's the workhorse choice for tactical shotgun builds, home defense setups, and anyone who wants adjustable length-of-pull to fit their frame or accommodate body armor.
Mesa Tactical engineered this as their most proven design, precision-cast from aircraft-grade aluminum and CNC machined for a solid, reliable fit. The receiver adapter accepts any standard AR-15 receiver extension tube, so you can dial in your preferred stock and grip combination. The stock position is optimized to keep your line of sight clear for bead sights and iron sights—a detail that matters when your shotgun is doing real work. Built-in sling attachment points round out the package, and the black powdercoat finish stands up to the field and the elements.
Collapsible stocks shrink the profile for transport, storage, and quick deployment, while the adjustable length-of-pull means one shotgun can work for you in street clothes, gear, or armor. The pistol grip option improves control and shooting comfort, especially in close-quarters work. If recoil is a concern, Mesa offers optional hydraulic recoil buffers separately to further smooth the shot.
| Brand | Mesa Tactical LLC |
| Model | Leo Tele Stock Adapter Gen II |
| Compatibility | Mossberg 500, 590, 590A1, Maverick 88 (12-ga and 20-ga) |
| Material | Aircraft-grade aluminum (investment cast, CNC machined) |
| Finish | Black powdercoat, chemical resistant |
| Stock Interface | AR-15 receiver extension (Mil-Spec compatible) |
| Length of Pull | Adjustable |
| Installation | No gunsmithing required |
Yes. The Leo adapter fits Mossberg 500, 590, 590A1, and Maverick 88 models in both 12-gauge and 20-gauge.
Any standard AR-15 collapsible buttstock and receiver extension tube will work with this adapter. You can swap stocks to match your needs or preferences.
Yes. The Leo adapter is designed with optimal stock elevation to preserve your line of sight through bead sights and iron sights.
No. Installation requires no gunsmithing—the adapter attaches directly to the rear of your shotgun's receiver.



SKU: 115785812 • Width: 3.5in • Height: 2in • Depth: 12in • Weight: 0.81oz