The credit for the idea goes to FuNguns.
Got a Speedfeed IV short stock for the 870 and modified it to fit my SLP. Seems very sturdy. Hope to get it to the range in a week or so and run it through its paces.
Wasn't that difficult. The bottom rear of the reciever has a tang extending out so had to cut away some material for that and the extension on the stock that fits into the reciever had to be trimmed some as well as reducing the amount that it actually extended into the reciever.
If you remove your factory stock and compare it to a 870 stock you will see what needs to be done. The most extensive part of the mod was cuting out for the rear tang.
Just used a dremel.
Cool I can not wait to get mine installed on the Mark 1 I played around with an old Choate with a pistol grip to see how close the 870 was to the FN and got it to fit but I really want the short LOP that the speedfeed has.