KAC-Knight's Armament M4 Sliding Buttstock Sling Mount Adapter, Standard Uncle Mike'sKnight's Armament
Mount clamps to M4 telescopic stock and includes an Uncle Mike's 1-1/4" quick detach sling swivel. Will not work with Colt/RRA ribbed/enhanced/waffle stocks. Will work with LMT SOPMOD stocks.
Sling swivel and stud can be removed giving you a QD socket for a push button sling swivel.