ERGO Short M-LOK Mossberg 500/590 Tri Rail
(Shockwave Only)

PRODUCT DESCRIPTION

M-LOK forend for 12-Gauge Mossberg 500/590

M-LOK rails at 3, 6, and 9 o’clock

Extremely lightweight and low profile.

Hard Black type III anodized 6061-T6 Aluminum

Comes complete with 3 black 4332 M-LOK Rail Covers

5 13/16"
https://sjhardware.com/ergo-short-m-...hockwave-only/