The Knight’s Armament SR-25 K3 16" rifle is chambered in 7.62 NATO / .308 Winchester and features a 16-inch barrel with a 1:10 twist rate designed to stabilize a wide range of .30 caliber projectiles. The barrel is manufactured from 416R stainless steel, utilizes 5R cut rifling, and incorporates a dimpled hybrid medium profile intended to balance durability, heat management, and weight.

This rifle has an approximate weight of 8.7 pounds and an overall length of 34.5" to 38.75" depending on stock position. The configuration provides a shorter overall length compared to longer SR-25 rifle models while maintaining the materials and barrel manufacturing methods used in Knight’s Armament rifles.