AR15 Parts and Accessories by M&A Parts

M1 M2 Sling & Oiler. 

The Oiler is an essential accessory used to attach a
sling to your Rifle and it stores Oil, these are GI, most are marked I.S (International Silver)
They work with all USGI Carbine rifles M1A2, M1A3, M2, M2A2 &
Auto-Ordnance M1 Carbine AOM150, Universal M1 Carbine and more.