POTD, short for Photo Of The Day, is TFB’s recurring articles where we try to find the best pictures on the Internet. Today we join the U.S. Marines as they do sniper training with M110 SASSs, M107s and M40 A6s.

Below: Shooting the M110 Semi-Automatic Sniper System.

Suppressed Accuracy International (AW) with an AI marked Schmidt & Bender rifle scope, probably belonging to the Spanish hosts.

Below: Barrett M107 .50 caliber sniper rifle.

So how does a compensator work? Well, just look at the picture below. Note the massive magazine as well.

A U.S. Marine with Special Purpose Marine Air-Ground Task Force-Crisis Response-Africa fires a Barrett M107 .50 caliber sniper rifle.

A U.S. Marine with Special Purpose Marine Air-Ground Task Force-Crisis Response-Africa fires an M40 A6 sniper rifle during a training event in Sierra De Retin, Spain.

The riflescope is from Schmidt & Bender.

A U.S. Marine with Special Purpose Marine Air-Ground Task Force-Crisis Response-Africa fires an M40 A6 sniper rifle during a training event in Sierra De Retin, Spain, Dec. 19, 2018.

All photos by Katelyn Hunter, US Army.