Riven RS1 Diaphragm Elk Call – Single Reed Hand-Tuned Cow Elk Mouth Call

The Riven RS1 is built for the moment that matters most — when a bull is close, the wind is right, and you need a cow call that produces the exact sound to close the final distance. Hand-tuned in the USA, the RS1 is a single-reed diaphragm elk call engineered to produce incredibly realistic cow mews, estrus whines, and soft lost calls with the tone and volume control that serious elk hunters demand. Whether you’re hunting the Flat Tops, the White River National Forest, the Roaring Fork Valley, or any other elk country in the West, the RS1 gives you the close-range calling capability to bring bulls into bow range.

Single Reed Precision-Cut Design – Low Air, High Realism

The RS1’s single latex reed with precision-cut design is the foundation of its performance. Single reed calls require less air pressure to operate than multi-reed configurations, making the RS1 exceptionally smooth and responsive — you don’t need to force air through it to produce great elk sounds. That low air requirement makes the RS1 beginner-friendly without sacrificing the tonal range and realism that experienced callers need. The smooth airflow and precise cut produce the subtle tonal variations — the slight breaks, the natural inflections, the soft trailing notes — that make a cow elk call convincing rather than mechanical.

Cow Mews, Estrus Whines & Soft Lost Calls – Close-Range Rut Calling

The RS1 excels at the close-range, subtle calling that seals the deal on bulls that are already committed. Run soft cow mews to communicate contentment and keep a bull moving toward you without alarm. Produce estrus whines during the peak rut to trigger a bull’s breeding instinct and pull him the final yards into range. Use soft lost calls to create urgency and draw in a bull that’s hung up just out of bow range. The RS1’s single reed design gives you precise control over volume and tone — critical when a bull is close and any unnatural sound can end the hunt.

Hand-Tuned in the USA – Ready to Perform Out of the Package

Every Riven RS1 is hand-tuned in the USA before it ships, ensuring consistent, reliable performance right out of the package. The comfortable black frame creates a perfect seal in the mouth for consistent sound production, and the compact, durable construction holds up through seasons of hard use in the field. The RS1 is quickly becoming a favorite among Colorado elk hunters who need a reliable, realistic cow call for close-range rut hunting.

Key Features

• Single latex reed with precision-cut design for smooth, low-air operation
• Hand-tuned in the USA – ready to use right out of the package
• Produces realistic cow mews, estrus whines & soft lost calls
• Excellent tone and volume control for close-range calling
• Beginner-friendly yet capable enough for experienced callers
• Comfortable black frame with perfect mouth seal
• Compact and durable for seasons of hard field use

Price: $12.99. The Riven RS1 — hand-tuned cow elk realism for the moments that count most during the rut.