SGA Sling Mount by Magpul
If you have the Magpul SGA stock, it mounts with removing the single stock screw, replacing the spacer with the sling mount and screwing the stock back on.
It works, It fits, It's Great!
If you are buying the 870 SGA buttstock and you plan to use HK style snap on your sling, you may as well get this. It is easy to install, it replaces the plastic spacer included with the stock. If, as I did you installed, the SGA stock before this piece was available the retrofit is a snap. Matches up well with the Magpul Forward Sling Mount for 870.
great sling mount
Very easy to install with the stock, overall very satifised with this product.
If you got the magpul stock you NEED it!
Great fit, nice black finish, you just put it on the side and the way you want (left or right of the receiver... facing the front or the back of the gun). Perfect for MS2 or MS3 sling (I have the MS3).