The result was the SR-25—short for Stoner Rifle, with 25 being the sum of the numbers in AR-10 and AR-15. It didn’t take the U.S. military long to recognize the virtues of the heavier, ...

While the SR-25 was a very successful rifle in its own right, seeing extensive use in various Special Operations Forces units and general adoption as the M110, KAC was eager to capitalize on its ...

The SR-25 (Stoner Rifle 25) is an update of the original AR-10 updated with elements of the AR-15, hence the “25” in the name is based on adding the 10 and 15.

Program Manager Lt. Col. Chris Lehner went on to say that the sources sought notice is the service's attempt to keep pace with the latest technology and capabilities of current SR-25-like weapons.