Listed with us is this MINT HK MP5K S/H sear gun . This gun is fully loaded with a 4 position burst trigger pack , equipted with a 3 lug bbl for quick mounting of suppressors or flash hider. Gun also has a paddle mag release and has been remarked. There is NOTHING left to upgrade it has all been done for you . Gun is a form 3 E file seller wants $57,000.00