The AR-platform is extremely popular because of its modular design, with a number of aftermarket parts available for those that want to customize them—and part of what makes owning a Remington 870 so much fun is that there is a broad aftermarket parts market that lets you customize your pump gun almost any way you want. And thanks to ERGO's new shotgun stock adapter, you can use some of your favorite AR accessories on your 20 gauge Remington 870 shotgun.

This adapter, constructed of impact/temperature/chemical resistant fiber-reinforced polymer, accommodates both mil-spec and commercial buffer tube accessories.

You can use your favorite AR-style pistol grips with the included ¼-20 screw. For the shorty Remington TAC-14 in 20 gauge, this means you can add an AR pistol brace to the shotgun and it still remains a non-NFA firearm.

ERGO recommends a price of only $39, so you can modify your 20 gauge 870 with a low initial investment.

Learn more about this accessory and other products from ERGO here.