These sights are brand new and unused. They are priced as a set at $145 delivered. Payment would be by a USPS or bank money order or by paypal. No trades are needed at this time. Here are some links to more info on the sights.
http://gearscout.militarytimes.com/2014/11/21/offset-and-optic-friendly-magpul-mbus-pros/
https://www.youtube.com/watch?v=cg94TKKv8no
https://dsgarms.com/mgbuspro-offset
https://www.m4carbine.net/itrader.php?u=7422
SAEBWTFT93C8BCEA776F
