kendeepdiver

come guys. give me some help. what year is this gun. can anybody tell me any info for this serial number. where can i order the night sights

New owner of a M4LE. I just bought off of hkpro. I know nothing about these outher than it just looked cool. I haven't received it yet.Not till next week. It came with a retractible stock. I guess thats why I liked it. I have a major hk auto problem also.The serial number on the side of it i can see in the post is y009240. Can anybody tell me any info.would love some help & advise. Thanks, ken