The X4MSD Picatinny Aluminum Quad Rail is designed the for AR15/M4/M16 rifles providing durability, reliability, and balance during combat. The X4MSD Picatinny Aluminum Quad Rail allows the option of a Pictainny rail for additional accessories of mounting tactical lights, slings, grips, etc. It is defined 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 bottom rail uses locking lugs with a retaining pin for a secure mount to the upper hand guard.
? Top rail creates one long monolithic rail along with the existing flat top rail ? Equipped with two push button sling swivel mounting points in the front and back ? The bottom rail is secured with friction fit ledge and a retractable spring loaded piston ? Slots around the rails provide maximum ventilation ? CNC machined from aviation grade aluminum to MIL-1913 standard ? Accepts grenade-launcher ? Manufactured with a hard anodized black oxide finish for durability
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