The Christensen Arms MPR (Modern Precision Rifle) in 5.56x45mm is a semi-automatic AR-15 built with a carbon fiber-wrapped barrel, free-floating M-LOK handguard, and Christensen's lightweight receiver. Christensen applied their carbon fiber barrel technology to the AR-15 platform to reduce weight below any comparable all-steel AR while maintaining the accuracy that competitive shooters demand. The MPR is approximately 1.5 pounds lighter than a comparable steel-barreled AR-15 of the same specification. Type: Rifle Action: Semi-Automatic Caliber: 5.56x45mm Capacity: 30 Year introduced: 2017, USA Weight: 88 oz Overall length: 32" Status: Active Intended use: hunting, hog_hunting, competition, precision