More recently the L129A1 has come into service as the designated marksman rifle.
All designated marksman rifles will have some type of optical sight with a higher magnification level than the standard issue rifle.
In some cases, the designated marksman rifle will have a longer barrel than the standard issued rifle.
The FD-200 has an accurised barrel, also found on designated marksman rifles.
The designated marksman rifles based on the M14 have barrels 18-22 inches long.
In most cases, a designated marksman rifle will share the ammunition used by standard issue rifles.
Carrying handle replaced with a Picatinny rail for scope mounting as a designated marksman rifle.
It features a stock similar to that of the G28 designated marksman rifle, except slimmer and non-adjustable.
The M6A3 is designed specifically to be a designated marksman rifle.
Suggestions include use as an automatic rifle and as a designated marksman rifle.