ERGO AR-15 Polymer Lower Receiver Magazine Well Action Block - Black

The ERGO AR-15 Polymer Lower Receiver Magazine Well Action Block is a practical bench-mounted solution for AR platform maintenance, cleaning, and storage. If you spend time at the workbench getting your rifle ready for the range or field—or just keeping it in top shape—this polymer block clamps securely to a bench or work surface and uses the magazine well to hold your AR-15 stable hands-free. It's a no-fuss alternative to jerry-rigging a solution with clamps and sandbags, and it keeps your lower receiver where you need it while you focus on the work at hand.

Made in the USA to ERGO's standards, this action block is built from polymer construction, which means it won't mar your rifle's finish and handles the job without unnecessary weight or bulk. Whether you're breaking down your rifle for a deep clean, replacing internals, or just storing it securely, a magazine well block simplifies the process and frees up both your hands. It's especially useful if you work on multiple rifles or prefer a dedicated setup over improvised methods.

ERGO backs all their products with a comprehensive satisfaction guarantee: if it doesn't meet or exceed your expectations, they'll replace it or refund your money, no questions asked about where you bought it. It's the kind of confidence you'd expect from a company that's been designing AR accessories for serious shooters and gunsmiths.

Key Features

• Polymer construction that won't damage rifle finishes
• Secures to bench or work surface via bolting or clamping
• Uses magazine well to stabilize AR-15 rifles during maintenance
• Made in the USA
• Backed by ERGO's satisfaction guarantee

Frequently Asked Questions

Will this action block fit my AR-15?

The ERGO AR-15 Polymer Lower Receiver Magazine Well Action Block is designed for standard AR-15 platform rifles. It works by inserting into the magazine well, so it is compatible with any AR-15 lower receiver that accepts standard AR magazines.

How do I secure it to my workbench?

The block bolts or clamps securely to a bench or other work surface. You'll need a suitable work surface and either bolts or clamps appropriate for your setup.

Will it scratch or damage my rifle?

The polymer construction is designed not to mar your rifle's finish or lower receiver when in contact with the block.

What can I use this for?

The action block is ideal for rifle cleaning, maintenance work, disassembly, and secure storage. It holds your AR-15 stable and hands-free so you can focus on the work you're doing without improvised support methods.