S length. Sure you need some force, but this is because of The truth that the short change buckle is held in place by friction. This may be the weak point to someone but I have found this to become of no problems for me, the sling has not skipped https://blueforcegearvickers2poin95949.shotblogs.com/the-definitive-guide-to-bulldog-belt-slide-holster-blk-48550626