The Family of Weapon Sights – Sniper (FWS-S) uses thermal sensor technology to provide extended lethality and exceptional observation that cuts through haze, fog, smoke and rain day or night. Above you can see the mighty Barrett Firearms M107A1 (M82) in .50 BMG, which should be quite a platform to test any optics.

The source for these pictures is this Tweet by PEO Soldier.

Just some #Sniper stuff for this weeks' #WeaponsWednesday and sneak peek at the Family of Weapon Sights Sniper FWS-S #Modernization #Technology #Future #Innovation #PewPew #LongRange #Army #Soldier #ArmyStrong pic.twitter.com/qSDpZJyqvm

— PEO Soldier (@PEOSoldier) February 24, 2021

Below: a Remington M2010 with the FWS-S front attachment. Note the support on the Picatinny rail. The sensor seems to be rather large looking at the lens cap.

Below is a good video by Debra Dawson, U.S. Army Acquisition Support Center, that explains how it works.

TFB is currently reviewing various riflescopes together with the new Pulsar Krypton FXG50 Thermal Clip-On (where you can also see an image of what it looks like through the reticle), and so far it works great on everything from old bolt-actions in .300 Win Mag to modern semi-autos.

It certainly looks like the U.S. Army is serious about thermals. In case you missed it, make sure you look at these articles as well: “FWS-CS Sight on M2HB Heavy Machine Gun and Mark 19 Grenade Launcher” and “Going Night Vision and Thermal – Fielding the ENVG-B & FWS-I“.

Have you tried a thermal or night vision front attachment? How did you like it? Let us know below.