Mossberg Flex Compact Stock 12.5 Lop Blk Syn

The Mossberg Flex Compact Stock with 12.5-inch length of pull is a synthetic replacement stock designed specifically for Mossberg Flex 500 and 590 shotguns. If you run one of those platforms and need a shorter stock for better handling, improved control in tight spaces, or a fit that works better for your frame, this is a plug-and-play upgrade that requires no gunsmith work or special tools to install.

The standout feature here is the tool-less locking system—you can swap this stock on and off without reaching for a wrench or screwdriver. That means faster adjustments at the range or in the field, and it opens the door to keeping multiple stocks on hand for different hunting scenarios or shooter preferences. The synthetic material is durable, weather-resistant, and low-maintenance, which matters if you're running your shotgun in wet conditions or storing it long-term.

At 12.5 inches of length of pull, this compact option suits shooters who prefer a shorter sight line and faster target acquisition, or anyone whose stock Mossberg setup feels a touch too long. It's a straightforward way to fine-tune ergonomics without replacing the entire shotgun. Black synthetic finish matches the standard Mossberg aesthetic and won't show wear as quickly as wood or bare metal.

Key Features

• Tool-less locking system for quick installation and swaps
• Synthetic construction resists weather and requires minimal maintenance
• 12.5-inch length of pull for compact, fast handling
• Black finish matches Mossberg Flex platforms
• Compatible exclusively with Mossberg Flex 500 and 590 shotguns

Specifications

Frequently Asked Questions

Will this stock fit my Mossberg Flex 500 or 590?

Yes—this stock is designed exclusively for Mossberg Flex 500 and 590 shotguns. It will not fit other Mossberg models or brands.

Do I need tools to install this stock?

No. The tool-less locking system lets you install and remove the stock by hand without wrenches or screwdrivers.

What length of pull is this, and who should use it?

This is a 12.5-inch length of pull—a compact option that works well for shooters who want faster handling, better control in tight quarters, or a stock that fits a smaller or shorter frame.

Is this stock synthetic or wood?

It's synthetic, which means it's durable, weather-resistant, and requires less maintenance than wood or bare metal.