I bought this KAC USMC rear sight off of eBay, back when I couldn’t find the sight I wanted. I eventually found the sight I wanted, so this one is up for grabs. I mounted it on an upper, but it’s never been to the range. Priced at $120 for a quick sale. (These usually go for $150.00) I don’t do PayPal, or other electronic payments. I can take USPS Money Orders as payment. Send PM if interested.