F.A.B. BM-4

Benelli M4 Polymer 4 Rail System

The BM-4 lightweight durable Rail System for your Benelli shotgun provides you with superior adaptability with it's four Picatinny rails, allowing super secure attachment for your optics and laser options.


  • Enables Four Picatinny Rails
  • Exceptionally Secure for Optical Sight and Laser Mounting
  • State- of- the- Art Ergonomic Design
  • Durable, Hardwearing & Lightweight Construction
  • Quick & Easy Installation
  • No Gunsmith Required
  • Superior Material Provides Appropriate Thermal Insulation
  • Constructed from Reinforced Polymer Composite

You can buy directly

visit our U.S. website


Weight305 gr
Width65 mm
Height86 mm
Length200 mm


Follow Us