KAC SR-15 — improved AR-15 pattern with Knight's URX rail system, improved bolt carrier group, and ambidextrous lower receiver. Law-enforcement and civilian precision AR; sub-MOA accuracy with match ammunition. The civilian counterpart to KAC military rifles. Type: Rifle Action: Semi-Automatic Caliber: 5.56x45mm NATO Capacity: 30 Year introduced: 1994, USA Weight: 160 oz Overall length: 44" Status: Active Intended use: law_enforcement, sport