





Eclipse Elk Bugle Tube
Step out of the Shadows & Experience the Lite!
Introducing the Riven Eclipse Carbon Fiber Bugle Tube. The ultimate carbon fiber bugle tube designed for elk callers who refuse to compromise.
Engineered from cutting-edge carbon fiber and polycarbonate, the Eclipse brings together unparalleled strength, durability, lightness & tonal precision caller’s demand.
At Riven, we understand that elk hunting isn’t just a hobby—it’s a passion, a tradition, and a grind. Simply put, we built the Eclipse for those who push the limits and seek the best.
Why Carbon Fiber?
Carbon fiber is well known for its strength, durability, consistency & sound quality. In recent years, carbon fiber has become widelyrespected within the custom guitar making industry. Carbon fiber is known to produce a balanced, rich, and resonant sound. It also produces a more sustained and articulate sound than other traditional materials.
The Nature of Sound:
We all know that, “Tone” can be a very subjective topic of conversation in the calling world. We also understand different tonalities will match different calling styles. In our minds, there is a common understanding of the elements that make up a pleasing tone such as volume, frequency response, overtones, definition of notes and sustain. The Eclipse was carefully designed to beautifully encompass all the above.
The Eclipse is not just another bugle tube. It was carefully crafted to help you deliver crisp, commanding sounds of a bull, the perfect blend of volume and “sound carry” to cut through the thickest timber or deepest canyons.
Step out of the Shadows and assert your Dominance! Find your voice… Hunt Riven!
•Compact Lightweight Design
•Superior Tonal Qualities
•Exceptional Resonance
•Perfectly Balanced
•Incredibly Durable
WARNING:
Cancer and Reproductive Harm:
Prop 65



“Eclipse isn’t wood—and that’s the point. The carbon fiber gives it a voice all its own: insanely loud bugles, deep chuckles, and cow sounds that reach. It’s ultralight, field-tough, and built to perform alongside the best. Just a different beast.”

This product is rated 5.0 of 5.0 stars.
It has received 5 reviews.


Bugle Tube Care
Classic or Contemporary
At Riven, we set out to make the world’s best elk bugle tube. Our Bugle Tubes are designed to give you a natural acoustic resonance in the timber or anywhere you hunt. Actually, it is more like an acoustic musical instrument than just another average plastic bugle tube. It can actually improve with age. When you follow a few basic tips for care, your tube will give you years of reliable use.
The Eclipse tube requires very little maintenance. Its carbon fiber construction naturally resists moisture and changing weather conditions, so no oils or conditioners are necessary. Simply keep it clean, dry, and protected from unnecessary impacts, and it will provide dependable performance season after season.
The Cambium is a tonal wood tube that responds to environmental stimuli like pressure, temperature, humidity, direct sunlight, dirt, and bacteria. We recommend that you follow these tips:
- Avoid extreme temperatures. Wood will shrink and expand naturally with temperature changes, and this can affect the way your bugle tube performs. Avoid long exposure to direct sunlight.
- Watch the humidity. As with any porous natural material, wood grains are affected by humidity, and should be kept in a moderate environment. This can be particularly relevant at high altitude or in arid environs. Likewise, avoid prolonged exposure to very high humidity. After hunting, store your bugle tube in a temp controlled environment, like inside your home.
- Keep it clean. After the hunt, we recommend wiping your bugle tube down with a micro-fiber polishing cloth. Avoid harsh chemical cleaners.
- Keep it safe. While your Cambium Bugle Tube can hold up to normal wear and tear, you should always treat it as you would an acoustic instrument. Be careful not to crush it or drop it. Always carry it and store it in a safe manner to avoid physical damage.




































