ADV TECH BUTTSTK/PG MOS/WIN/REM 12GA

The ADV TECH BUTTSTK/PG MOS/WIN/REM 12GA delivers modular shotgun ergonomics for Mossberg, Winchester, and Remington platforms. Built by ATI Outdoors, this 15.6-inch buttstock integrates grip and stock into one system. Whether you're in San Jose or anywhere in the South Bay, understanding your platform's capabilities starts with quality parts and knowledge of California firearm laws.

Mossberg Winchester Remington Platform Fit

This buttstock assembly is engineered for three major 12-gauge shotgun manufacturers. The MOS designation indicates Mossberg compatibility, while the design accommodates Winchester and Remington receivers with standard receiver profiles. The 15.6-inch length balances control and handling for tactical and sport shooting. Installation requires basic tools and familiarity with your specific platform. For questions about legal configurations, review PC §32100 exempt revolvers and related statutes governing firearm modifications. Visit our gun shop in Sunnyvale for our full catalog.

Frequently asked questions

Does this buttstock work with all Mossberg 500 and 590 models?

This stock fits standard Mossberg receiver profiles on 500 and 590 series shotguns. Verify your receiver configuration before purchase, as some specialized variants may require adapter components.

What tools are needed to install this buttstock assembly?

Installation typically requires a screwdriver and basic gunsmithing tools. Consult your shotgun's manual for specific torque specifications and removal procedures to ensure proper fit and function.

Where is the closest FFL dealer to Santa Clara, Mountain View, or Palo Alto?

TacticCAL Gun Store in Sunnyvale is a short drive from Santa Clara, Mountain View, and Palo Alto, serving the South Bay as a full-service FFL dealer for transfers and DROS. TacticCAL is your gun store Richmond in the Bay Area.