As mentioned in LeeKegan's SR thread in the Elite forum, the whole thing from the tip to the actual receiver is about 31", but the section with the fluting (ribbed detail) is 19 3/4". The body of the SR itself is also 31" in length, in case you wanted to know :cool
P.S., A bit of friendly advice, btw. If you come across a thread that hasn't been posted in in over 30 days (which this one clearly hasn't since mid-April), it's best not to post. This is called necro-posting, and is frowned upon by the Admin/Mod group. If ever you have a question regarding someone's thread and it's been more than 30 days, my suggestion would be to PM them directly about it. Just keep that in mind for future, dude.