S length. Guaranteed you will need some force, but this is due to the fact that the quick alter buckle is held in place by friction. This is likely to be the weak point to somebody but I have discovered this to become of no troubles for me, the sling https://waylonbjqtu.affiliatblogger.com/86767566/rumored-buzz-on-ke-arms-stripped-polymer-kp-15-rifle-lower-receiver