Magpul XDM had stop sets.

Cleaning out (a significant) amount of parts that have accumulated over the last decade.

$20 shipping (Can Post basic insurance) to the majors and I combine ship for multiple purchases. Winnipeg locals can meet in Lockport for pickup.

If the item is still up here (not marked SOLD) it is still avail. 

Magpul XDM had stop sets. Very good used cond. 2 for $40 or $25 each.