This is a take down lever for stock removal on a Bushmaster Carbon 15 rifle.  These are bulk packed.  Bushmaster sold them as “deburred” which appears to be the finished product, however this is not an item we typically carry.
We are selling them in a 100pk for 3.00 for that reason.
According to Bushmaster pricing they were $4.95 each originally.  No returns, as is.