Out of stock
SKU: 155455
UPC: 842834119752
MPN: XBT31521
The Rock River Arms Winchester 20+1 .308 Win 20" 21-Round Stainless Carbine is a purpose-built modern rifle engineered for precision shooting, tactical operations, and demanding field work. Designed for shooters who require reliability, accuracy, and modularity in a mid-range platform, this carbine bridges the gap between patrol rifle and specialized precision tool. The 20-inch barrel delivers optimal velocity and handling characteristics in the .308 Winchester chambering, making it suitable for law enforcement, military trainers, competitive shooters, and civilian marksmen who demand performance from a compact, accurate rifle system.
Rock River Arms' stainless steel construction provides superior corrosion resistance and longevity in harsh environmental conditions—critical for professionals working in coastal, wet, or austere terrain. The 21-round magazine capacity (20+1) maximizes tactical readiness while maintaining reasonable weight and balance; the rifle's 20.26-pound overall weight represents a deliberate engineering balance between durability and pointability in extended operations. The 20-inch barrel length reduces overall length to 40 inches, enabling faster target acquisition and maneuverability in confined spaces, vehicles, and CQB-adjacent scenarios while maintaining sufficient dwell time for consistent .308 ballistics. The carbine's modular design allows integration with standard AR-pattern accessories and optic mounting solutions.
This platform benefits law enforcement precision rifle teams, military designated marksmen, and civilian shooters seeking a compact yet powerful .308 solution for medium to long-range work. The stainless construction and compact carbine profile make it particularly valuable for operators requiring corrosion resistance without sacrificing .308 power. Installation of optics, suppressors (if threaded), and tactical accessories follows standard AR-platform conventions, ensuring compatibility with proven duty-grade components and maintaining reliable performance across diverse operational environments.
WARNING ⚠️ You must be 18 or older to purchase shotgun or rifle ammunition and 21 or older to purchase handgun ammunition and firearms. Please reference our requirements for ammunition orders to "restricted" states HERE. Always make sure you use the correct ammunition for your firearms. Ammo cannot be shipped to a PO Box. Please reference state & local laws before making a firearm or ammunition purchase.
