The PR-MO Mossberg 500 Rail System offers a superior mounting solution for your Mossberg accessories.
Advantages:
(a) Enables Three Picatinny Rails
(b) Mount Picatinny Based Accessories on Your Shotgun
(c) State-of-the-Art Ergonomic Design
(d) Durable, Hardwearing & Lightweight construction
(e) Quick & Easy Installation
(f) No Gunsmith Required
(g) Provides Appropriate Thermal Insulation
(h) Constructed from Reinforced Polymer Composite