Silent rifle sling This is the second of our reviewed leather slings and quality; it certainly is. 1 star 2 stars 3 stars 4 stars 5 stars. It has gone through few changes since being first introduced in the 1960s. We hands-on cover them all for your AR-15 or precision rifle. Size: 1 1/4" X 50" Color: Black Condition: New in USGI Silent Rifle Sling 1. Mar 6, 2010 · Ive built a Vietnam era M16 and need a sling to put on it and I found a site that has silent slings in this thread in this sub-forum in the entire site. Opens in a new window or tab. M4/M16 Small Arms Sling, Black Nylon Manufactured and current United States Military issue for the M4/M16 rifles. With your choice of barrel length 25" or less, optional mid or heavy weight sporter profile barrel, with or without iron sights. Black Phosphate Coated Steel Buckles.