FM-9 quad rail for use with our Elite model fits 11″ or 16.5″ barrel lengths.
4- Picatinny rails
1- RAil mount tube
1- set of hardware for mounting
If you already own an elite model and would like to change from a 6″ rail
and barrel system to an 11″ or 16″ Barrel and rail system this is the
rail assembly you will need.
(Note: if you have a minimalist model FM-9 upper you will need the trunion assembly,
and barrel assembly as well or you can buy the complete upgrade package,
which includes – the rail assembly, trunion assembly and the barrel assembly.)