This metal sling mount fits between the extendable rear stock on the M4 / XM177 and the receiver. Two mount points are available for mounting your sling on the top spine of the gun, or on the left side. Easy to install and a great solution for adding a comfortable sling to carry. The fact is that the rear sling mount point on the stock M4 / XM177 is too far rearward when the stock is extended. This piece from Just is just what the doctor ordered!
Shop for a 3 point sling in our Combat Gear section.