The Ergo 4256-BK is a short forend for Mossberg 500 and 590 shotguns with M-LOK slots. It replaces the factory forend and lets you mount a light or other M-LOK accessories. Distributors list it at 5-13/16 inches long, in black.
- Brand: Ergo
- Fits: Mossberg 500 / 590
- Length: 5-13/16 in.
- Accessory mount: M-LOK slots
- Color: black
- Manufacturer part #: 4256BK
- UPC: 874748009102
