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The Mesa Tactical LEO Gen 2 stock adapter is one of the cleanest ways to modernize a Remington 870 without touching a file or hiring a gunsmith. It bolts on in place of the factory stock and opens the door to standard AR-15 grips and collapsible buttstocks, so your pump gun starts handling a lot more like the carbine you already know. The big win here is fit. A six-position telescoping stock lets you dial in the length of pull for your frame, and it works just as well when you're shrugged into a jacket, a plate carrier, or bulky cold-weather gear.
This is the second-generation design, and Mesa reworked it based on years of real feedback. The whole adapter is shorter and more compact than the original, and the pistol grip area is angled forward a few degrees, closer to a 1911 grip angle. That change gives the web of your hand more room and makes it play nice with beavertail-style AR grips that used to be a headache on the old version. The end plate also engages lower on the sides rather than up top, so you're less likely to bang your hand on it under recoil.
Mesa machines these from investment cast aircraft-grade aluminum, then finishes them with a tough powder coat that shrugs off scuffs and weather. A key part of the LEO design is stock elevation. It sits low enough that you keep a clean sight picture over your bead or open sights instead of staring at the back of a buttstock. There's a built-in QD sling swivel socket plus additional sling attachment points, so mounting a sling is straightforward no matter how you like to carry.
Just know that SKU 91150 is the adapter itself. You'll add your own AR-15 grip and collapsible stock to finish the build, which is part of the appeal since you get to pick the parts you already trust. Installation is genuinely simple, and once it's on, you've got a compact, adjustable 870 that's easier to store, transport, and shoulder.
No. This SKU (91150) is the adapter itself, so you'll supply your own AR-15 pistol grip and collapsible buttstock to complete the build. That's actually part of the appeal, since you can run the exact stock and grip you already like. If you'd rather get everything at once, Mesa also offers complete LEO Gen 2 stock kits.
Nope. The adapter is designed as a no-gunsmithing install that replaces your factory stock using included hardware. Most folks can get it mounted with basic tools and a little patience.
Yes. The LEO design intentionally sets a lower stock elevation so you keep a clean sight picture over your bead or open sights. That's a core part of what separates the LEO from adapters that raise your eye too high off the barrel.
Not with SKU 91150. The locking nut and push-button sling swivel are sold separately as individual parts. The adapter does include a QD sling swivel socket and additional sling attachment points, so you have mounting options built in.
| UPC | 878405005407 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | 91150 |
| Product Type | Stock |
| Model | |
| Color | Black |
| Caliber/Gauge | 12 Gauge |
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