X4MS CAA M16/AR15/M4 picatinny aluminum quad rail


picatinny aluminum quad rail.
For M16/AR15/M4.
Made Of Aluminum.

This is a backorder. Handling time may take up to a month.

SKU: X4MS / 01 Category:


Tier deal
Quantity Discount Discounted price
2 - 10 27.78% $82.04
Bulk pricing will be applied to package:

X4MS CAA M16/AR15/M4 picatinny aluminum quad rail

This is a backorder. Handling time may take up to a month.
Designed to exceed the newest requirements of the US Army for improving zero retention/repeatability.
  • Upper three rail section mount underneath the end cap & secured in place with a friction fit ledge & roll pins.
  • The receiver end secured with a barrel nut bracket that is attached to the upper three rail section with four captive flathead screws.
  • The bottom rail is secure with friction fit ledge & with a retractable spring loaded piston.
  • Four full length rails - top rail creates one long monolithic rail 
    with the existing flat top rail.
  • XM4S has two push button sling swivel mounting 
    points at the front.
  • XM4SD has four push button sling mounting points at the 
    front and back.
  • Slots around the rails provide maximum ventilation around the rails.
  • CNC machined from aviation grade aluminum to MIL-1913 
    standards with a hard anodized black oxide finish for durability & ease of maintenance.
  • Accepts grenade-launcher.

Eligibility: for M16/AR15/M4

Material: Made Of Aluminum


  • Weight  300 gr.
  • Length 18.5 cm.
  • Height 6 cm.
  • Width 5.5 cm.

Rails: Total 4



Additional information

Manufactured at




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