Command Arms Carbine Aluminum 4 Rail System Handguard

The X4MS Picatinny Aluminum Quad Rail improves the durability, reliability and balance while interfacing with all standard carbine rifles. The X4MS Picatinny Aluminum Quad Rail for rifles with durability, reliability and maintaining balance while interfacing with all issued weapon system components. The X4MS Picatinny Aluminum Quad Rail defines as a superior zero retention by having the upper three rail section mount underneath the end cap and secured in a place with a friction fit ledge with roll pins. The receiver end of the X4MS is tightly secured to the barrel with a nut bracket attached to the upper three rail section with four captive flathead screws. The bottom rail uses locking lugs with a retaining pin for a secure mount to the upper hand guard.