Lucy™ Adapter for 20 GA Shotguns (Rem 870)

Called the Lucy adapter, this elegantly simple coupler simply bolts to the back of a 20 gauge 870 receiver, allowing the 12 gauge stock to then rigidly bolt to the adapter. This greatly increases the options and availability of butt stocks for the 20 gauge shotgun.

SKU: 93890



Mesa Tactical’s 20 gauge to 12 gauge adapter dramatically increases the number and type of butt stocks that can be used with 20 gauge Remington 870 shotguns. Attached at the receiver in place of the standard 20 gauge stock, this cast steel adapter enables the use of any 12 gauge Remington 870 stock. There are many more options for the 12 gauge than 20 gauge, including Mesa Tactical’s Urbino Stocks, telescoping stock adapter kits and even the Hydraulic Buffer system.


AI&P Tactical has long been an advocate of the 20 gauge shotgun as a tactical platform. Needing professional use tactical products for their 20 gauge shotgun builds, AI&P contacted Mesa Tactical about making an adapter to fit 12 gauge stocks onto the smaller 20 gauge frames. The resulting adapter helps AI&P meet the needs and requests looking to fit Mesa Tactical stocks onto their 20 gauge Remington 870 shotguns.

 The adapter’s namesake is Mesa Tactical’s Sales Director, Lucy Espinoza. After receiving numerous requests for Mesa Tactical’s popular Urbino Stock for the 20 gauge Remington 870, and being a 20 gauge fan herself, she pushed for the development of the adapter. 



  • Remington 870 (20 gauge)

Optional Mesa Tactical Stocks


 All Mesa Tactical products are made in the USA of high quality materials and include LIFETIME WARRANTY. Mesa Tactical warrants that all products are free from defective material and  workmanship and, subject to the conditions set forth below, agrees to repair or  replace any part of a product that proves defective by reason of improper workmanship or materials without charge for parts and labor. In no event will Mesa Tactical be liable for damages, lost revenue, lost wages, lost savings or any other incidental or consequential damages arising from purchase, use or inability to use this product. No express or implied warranty is madefor Mesa Tactical product damaged by accidents, misuse, natural or personal disaster, or any unauthorized disassembly, repair or modification. Mesa Tactical’s warranty covers only repair or replacement of defective Mesa Tactical products.

*No export license is required for most international destinations.

You Might Also Like:

Previous post:

Next post: