Mesa Tactical 12 Gauge Stock Adapter for Remington 870 20 Gauge - Steel Matte Finish

The Mesa Tactical 12 Gauge Stock Adapter for Remington 870 20 Gauge opens up your 20 gauge shotgun to a much wider world of aftermarket stocks and upgrades. Built from cast steel with a matte finish, this adapter bridges the gap between the Remington 870 platform's 12 and 20 gauge variants, letting you install any 12 gauge 870 stock on your 20 gauge receiver. If you've been frustrated by the limited stock options available for 20 gauge shotguns, this straightforward mechanical solution unlocks accessories like Mesa Tactical's Urbino stocks, telescoping stock adapter kits, and even specialized systems like the Hydraulic Buffer—all designed around the more popular 12 gauge platform.

Whether you're building a tactical shotgun, optimizing ergonomics for your body type, or simply want more control and repeatability at the range or in the field, stock selection matters. This adapter lets you customize your 20 gauge 870 without being locked into whatever 20 gauge stocks happen to exist. The cast steel construction and matte finish match the rugged, utilitarian aesthetic of the 870 platform and are built to handle field use.

Installation is straightforward—this is a mechanical fit solution that requires no gunsmithing or permanent modification. It's the kind of practical problem-solver that makes sense once you realize how many more options exist in the 12 gauge ecosystem.

Key Features

• Enables use of 12 gauge Remington 870 stocks on 20 gauge receivers
• Cast steel construction with matte finish for durability and corrosion resistance
• Expands compatibility with aftermarket Mesa Tactical stocks and buffer systems
• No permanent modification required

Specifications

Frequently Asked Questions

Will this adapter work with my Remington 870 20 gauge?

Yes, this adapter is designed specifically to fit Remington 870 20 gauge receivers, allowing you to mount 12 gauge stocks.

What stocks can I use with this adapter?

Any 12 gauge Remington 870 stock will fit, including Mesa Tactical's Urbino stocks, telescoping stock adapter kits, and other 12 gauge-compatible aftermarket options.

Do I need a gunsmith to install this?

No permanent modification is required. This is a mechanical adapter that fits as a solution to expand your stock options.

Why would I use this instead of a 20 gauge stock?

The 12 gauge platform has significantly more aftermarket stock options available, including specialized systems like the Hydraulic Buffer. This adapter lets you access that broader ecosystem of upgrades for your 20 gauge shotgun.