Command Arms CAA Free Float Quad Rail System XM4SD Piston Compatible
XM4SD - Carbine Aluminum Quad Rail requires delta ring removal and clamps to barrel nut.
Designed to exceed the newest requirements of the US Army for improving zero retention/repeatability. With a new slimmer profile, CAA’s newest Picatinny quad rail improves durability, reliability and maintainability while interfacing with all issued weapon system components.
- Four full length rails
- Top rail creates one long monolithic rail with the existing flat top rail
- Piston compatible
- Laser etched T-Marks
- 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 and ease of maintenance.
- Made in Israel