Adjustable Multi Horn

Adjustable Multi Horn

ISOLATOR / Triple Weight Horn
$699.00
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Adjustable Multi Horn

Adjustable Multi Horn

$699.00

The Adjustable Multi Horn is the first fully customizable resistance curve system built to let you control how load hits throughout the rep. By adjusting arm angle, horn position, and horn configuration, you can bias the start, mid-range, or finish of the movement on the Bulletproof Isolator or compatible jammer arm setups.

⚠️ Important Internal Shaft Installation & Adjustment Reminder

The Adjustable Multi-Horn comes with and requires the upgraded internal shaft. Before replacing your internal shaft, please test your current shaft to ensure it can be removed easily.

Watch this video for step-by-step instructions on how to remove and replace the internal shaft:

▶ Watch Internal Shaft Installation Video

If the existing shaft does not come out smoothly, please reach out to us for guidance .

For Use With
Weight Horns

Insured Shipping

One Year Structural Warranty

30 Day Money Back Guarantee

The Adjustable Multi-Horn takes one of the most loved features from high-end commercial machines and evolves it into something far more powerful, modular, and customizable. Instead of being locked into pre-determined resistance curves, you now have infinite variations to build your own resistance profile.

Originally, multi-horn systems were limited to specific machines and fixed placements—but the Adjustable Multi-Horn breaks that limitation completely. By adjusting the angle of each horn, changing the distance between horns, and controlling how fast resistance increases or decreases, you gain total control over your strength curve and muscle tension.

Three Resistance Profiles

Top horn delivers heavy loading at the start and lighter through the finish. Middle horn provides smooth, consistent resistance. Bottom horn loads lighter at the start and heavier at peak contraction.

Fully Modular Design

Run all three horns for maximum control, remove the middle horn for jammer arm applications, or run two horns only for simplified setups. Customize based on the movement, machine, or your preference.

Engineered Security

Includes a rubber perch pin to set your ideal starting angle and function as a safety stop to prevent over-rotation. Every arm is secured with a solid through-pin for strength, a pop pin for safety and positioning, and tightening pins to eliminate unwanted movement.

Works with Telescopic Weight Arm

Designed to integrate seamlessly with the Isolator and pairs with our Telescopic Weight Arm to unlock the full potential of the system and achieve the intended loading profile.

Complete upgrade to how resistance works—control over strength curves, precision over muscle tension, and freedom to adapt to any movement or setup.
Overview

The Adjustable Multi-Horn takes one of the most loved features from high-end commercial machines and evolves it into something far more powerful, modular, and customizable. Instead of being locked into pre-determined resistance curves, you now have infinite variations to build your own resistance profile.

Originally, multi-horn systems were limited to specific machines and fixed placements—but the Adjustable Multi-Horn breaks that limitation completely. By adjusting the angle of each horn, changing the distance between horns, and controlling how fast resistance increases or decreases, you gain total control over your strength curve and muscle tension.

Three Resistance Profiles

Top horn delivers heavy loading at the start and lighter through the finish. Middle horn provides smooth, consistent resistance. Bottom horn loads lighter at the start and heavier at peak contraction.

Fully Modular Design

Run all three horns for maximum control, remove the middle horn for jammer arm applications, or run two horns only for simplified setups. Customize based on the movement, machine, or your preference.

Engineered Security

Includes a rubber perch pin to set your ideal starting angle and function as a safety stop to prevent over-rotation. Every arm is secured with a solid through-pin for strength, a pop pin for safety and positioning, and tightening pins to eliminate unwanted movement.

Works with Telescopic Weight Arm

Designed to integrate seamlessly with the Isolator and pairs with our Telescopic Weight Arm to unlock the full potential of the system and achieve the intended loading profile.

Complete upgrade to how resistance works—control over strength curves, precision over muscle tension, and freedom to adapt to any movement or setup.
Features
  • Adjustable Horn Angles: Fine-tune the angle of each horn independently to customize your resistance curve and control how fast resistance increases or decreases through the range of motion.
  • Variable Horn Spacing: Change the distance between horns to adapt the loading profile and create infinite variations between fixed positions, enabling precision over muscle tension.
  • Three Independent Horns: Choose between top horn (heavy start, lighter finish), middle horn (smooth, consistent resistance), or bottom horn (lighter start, heavy at peak contraction) based on your training goal.
  • Modular Configuration: Remove the middle horn for jammer arm applications, run two horns only for simplified setups, or use all three for maximum control and customization.
  • Rubber Perch Pin: Sets your ideal starting angle, functions as a safety stop to prevent over-rotation, and ensures controlled, repeatable movement patterns.
  • Triple Securing System: Solid through-pin for strength, pop pin for safety and positioning, and tightening pins to eliminate unwanted movement under load.
  • Upgraded Center Shaft: Features a hex-shaped connection (replacing round male-to-female design) with dual bolts to prevent slipping and ensure maximum strength under higher loads.
Compatibility

The Adjustable Multi-Horn is designed to integrate seamlessly with Bulletproof ISOLATOR (primary design intent) and adapts to your specific setup and movement requirements.

  • Works with: Bulletproof ISOLATOR (primary design intent).
  • Requires: Telescopic Weight Arm to unlock full potential and achieve intended loading profiles
  • Adapter options: Jammer arm adapter available for simplified jammer arm applications
  • Side port configuration: Lever arm and weight horn can work as counterweight using side port weight arm adapter
Required pairing: The Adjustable Multi-Horn must be paired with the Telescopic Weight Arm. Standard arms are too short to properly utilize the top horn and will compromise the intended resistance curve. The telescopic arm extends the lever for proper resistance arcs, allows lighter weight with greater felt load, and creates a smoother, more effective overall experience.
What's Included
  • Triple Weight Horn option: Both arms with weight horns plus center weight horn for maximum control and three independent resistance profiles
  • Double Weight Horn option: One arm with weight horn and center weight horn for simplified setups
  • Upgraded center shaft: Hex-shaped rotational connection with dual bolts to prevent slipping and ensure maximum strength
  • Rubber perch pin: For setting your ideal starting angle and safety stop to prevent over-rotation
  • Through-pin, pop pin, and tightening pins: Complete securing system for strength and safety under load
  • Jammer arm adapter: Available to adapt the system for jammer arm applications
  • Side port weight arm and counterweight adapter: Optional lever arm configuration for counterweight setup

When Purchasing the ISOLATOR Option

Triple Weight Horn Configuration
Triple weight horn with both arms and center weight horn
You will receive the Triple Weight Horn or Double Weight Horn depending on what you choose
Double Weight Horn Configuration
Double weight horn with one arm and center weight horn
You will receive the Triple Weight Horn or Double Weight Horn depending on what you choose
Upgraded Center Shaft
Upgraded hex-shaped rotational shaft with dual bolts
Side Port Weight Arm & Counterweight Adapter
Side port weight arm and counterweight adapter

When Purchasing the Other/Jammer Arms Option

Triple Weight Horn Configuration
Triple weight horn with both arms and center weight horn
You will receive the Triple Weight Horn or Double Weight Horn depending on what you choose
Double Weight Horn Configuration
Double weight horn with one arm and center weight horn
You will receive the Triple Weight Horn or Double Weight Horn depending on what you choose
Jammer Arm Adapter
Adapter to attach to jammer arms
Specifications
  • Center Shaft Design: Upgraded hex-shaped rotational shaft replacing old round male-to-female connection
  • Securing System: Solid through-pin, pop pin for safety and positioning, and tightening pins to eliminate movement
  • Bolt Configuration: Dual bolts (upgraded from single) to ensure maximum strength under higher loads
  • Horn Count Options: Triple Weight Horn (both arms with weight horns plus center weight horn) or Double Weight Horn (one arm with weight horn and center weight horn)
  • Rubber Perch Pin: Included for angle setting and over-rotation safety
  • Integration: Designed for Isolator GMR arms; requires Telescopic Weight Arm for optimal performance
The upgraded center shaft with hex connection and dual bolts represents a significant structural improvement over standard systems, built to handle the increased loads from adjustable resistance customization.
Measurements
Maximum Dimensions
Maximum dimensions of Adjustable Multi-Horn
Isolator Clearance (Inches)
Clearance measurements in inches when using Adjustable Multi-Horn with Isolator
Isolator Clearance (Millimeters)
Clearance measurements in millimeters when using Adjustable Multi-Horn with Isolator
Product FAQs

What is the difference between the Triple Weight Horn and Double Weight Horn?

The Triple Weight Horn includes both arms with weight horns plus a center weight horn, giving you three independent resistance profiles and maximum control over your strength curves. The Double Weight Horn includes one arm with a weight horn and a center weight horn, offering a simplified setup that still provides multiple resistance options. Choose Triple for maximum customization or Double for streamlined, focused training.

Do I need the Telescopic Weight Arm for this system to work?

Yes. The Adjustable Multi-Horn must be paired with the Telescopic Weight Arm to unlock its full potential. Standard arms are too short to properly utilize the top horn and will compromise the intended resistance curve. The telescopic arm extends the lever for proper resistance arcs, allows lighter weight with greater felt load, reduces the impact of minor flex from adjustability, and creates a smoother, more effective overall experience.

Can I customize the resistance curve with this system?

Yes. You can adjust the angle of each horn, change the distance between horns, and control how fast resistance increases or decreases through the range of motion. This gives you infinite variations in resistance profiles instead of being locked into pre-determined curves. You can fine-tune your starting load versus peak contraction load to match your training goal or movement pattern.

How does the rubber perch pin enhance safety?

The rubber perch pin serves two critical functions: it sets your ideal starting angle for each movement and functions as a safety stop to prevent over-rotation. This ensures controlled, repeatable movement patterns and protects against dangerous range-of-motion extremes during loaded exercise.

What makes the upgraded center shaft different and why does it matter?

The upgraded center shaft features a hex-shaped rotational connection (replacing the old round male-to-female design) with dual bolts instead of a single bolt. This hex design prevents slipping under load, and the dual bolts ensure maximum strength and stability when handling the increased resistance forces from customizable adjustments. It's a critical upgrade for safety and durability.

Can I use the Adjustable Multi-Horn for jammer arm applications?

Yes. You can remove the middle horn for jammer arm applications or use the included jammer arm adapter to attach the system to your jammer arms. This flexibility allows you to customize resistance curves across multiple movement types on your equipment setup.

Adjustable Multi Horn Works With