COBRA SYSTEM RX ADDER
Speed (FPS) (205gn)
240/280
Draw Weight (LBS)
130/180
Length (Bow Only)
21.5"
A revolution by EK ARCHERY and German expert Jörg Sprave: The RX ADDER. 240 FPS in a compact, repeating design. The era of manual loading is over.
Ek’s Auto-loading Magazine
Integrated Under Lever System
Easy Disassembly
Trigger Safety System
High-Grade Trigger Assembly
AR15 Adjustable Stock
Retail Pricing: Please contact your dealer for a quote

FEATURES

 

Repeating for revolution

It’s a revolution. EK ARCHERY and German expert Jörg Sprave unveil the RX ADDER, the pioneering repeating crossbow.
It packs 240 FPS into a compact frame. With its patented magazine, the days of manual loading are over.
The era of the repeating crossbow has arrived.
 
  • ALL_catalog_26F03_230i7sVPtj

    EK’s Auto-loading Magazine with Jörg Sprave

    Our co-developed magazine uses a gravity-drop switch to auto-load instantly after cocking. No more complex manual loading..
  • ALL_catalog_26F03_cvuSWw6VhN

    Integrated Under Lever System
    Less Effort. More Powerful

    With its signature Under-lever design, the Cobra series delivers effortless cocking and maximizes efficiency.
  • ALL_catalog_26F04_Y6L6Hb4A3S

    Easy Disassembly

    Quickly disassemble the crossbow into its core components without the need for tools, perfect for portability.
  • ALL_catalog_26F04_FlGw8zXz3N

    Trigger Safety System

    Equipped with EK’s exclusive Anti-Dry Fire system, it prevents limb damage and injury accidents caused by accidental dry firing.
  • ALL_catalog_26F04_I6HIfXowXp

    High-Grade Trigger Assembly

    Reduced friction for a smooth, crisp release. Minimize shot-disturbing wobble and increase your aiming stability.

SPECS / PACKAGE

COBRA SYSTEM RX ADDER
COBRA SYSTEM RX ADDER
Speed (FPS) (205gn)
240/280
Draw Weight (LBS)
130/180
Power Stroke
7.5"
Length
21.5"
Axle to Axle (Cocked)
15.5"
Axle to Axle (Uncocked)
18.5"
Mass Weight (Bow Only) (LBS)
5.2
Ek’s Auto-loading Magazine
Integrated Under Lever System
Easy Disassembly
Trigger Safety System
High-Grade Trigger Assembly
AR15 Adjustable Stock
KINETIC ENERGY
26.23 FT-LBS / 35.56 JOULES
with 130 lbs limb
35.70 FT-LBS / 48.40 JOULES
with 180 lbs limb

SETUP & DRILL

2 Levels of Modular Adaptability. Pick your setup, hit the drills, and master every shot.
⚡ Draw Weight130Lbs
 
🚀 Speed 240FPS
 
🎯 Range5-30m
 
⚖️ Bolt Weight205 gr
 
1 Minute Drill: SPORT LEVEL
1 Minute Drill
ALL_catalog_26F02_rjdRFZFizp

Target Setup

10–20m: 2 targets|20–30m: 3 targets|30m: 2 targets

 

Mission:10-30M

Perform dynamic shooting while moving laterally along the firing line. Utilize 130lbs draw weight to engage and shatter 7 targets placed within the 10–30m zone within 60 seconds.

 

Skill Focus

Under Lever System

Master the mechanical advantage of the Under Lever System to efficiently cycle the 130 lbs draw weight while on the move. Practice maintaining your flow to ensure accurate shots.

 

Rapid Red Dot Acquisition

After cocking, quickly find the next target through your red dot. Keep your sight steady and move smoothly between targets, even while walking.

Essential Safety Guidelines

OPERATION SAFETY
Always treat the crossbow or bow as loaded and keep it pointed in a safe direction. Keep your finger off the trigger until you are sure of your target and what is beyond it.
RANGE SAFETY
Ensure a reliable backstop to prevent over-penetration, and keep the surrounding area free of hard surfaces to avoid bolts shattering or deflecting.
Required Gear Setup
333
Standard

RX ADDER 130LBS Limbs

The classic ADDER, perfectly balancing excellent range with smooth rapid-fire performance.

333 (1)
Standard

Red Dot Sight

Optimized for rapid target acquisition and intuitive "both-eyes-open" shooting.

333 (2)
Standard

RX ADDER Standard Bolts

Features high-visibility blue fletching, ensuring exceptional flight stability during rapid-fire cycling.

333 (3)
Add-on Required

EK Targets Bag

High-density layered foam built to withstand frequent, heavy-impact drills.

Learn More >
⚡ Draw Weight180Lbs
 
🚀 Speed 280FPS
 
🎯 Range5-50m
 
⚖️ Bolt Weight205 gr
 
1 Minute Drill: TACTICAL LEVEL
1 Minute Drill

Target Setup

30–40m: 4 targets|40–50m: 3 targets

 

Mission:30-50M

From a firing line, demonstrate long-range precision. Within 60 seconds, utilize the high-velocity power of the 180 lbs draw weight to accurately engage 7 targets placed between 30–50 meters.

 

Skill Focus
ALL_catalog_26F03_3OJWyGVFdy

Breathing Control Stability

Master the rhythm of controlled breathing while aiming at long distances. Combine this with a smooth and steady trigger pull to minimize movement and ensure maximum accuracy.

 

4x32 Scope & Ballistic Compensation

Learn to utilize the reticle markings to adjust for bullet drop (ballistic compensation) when engaging targets at varying distances from 30m to 50m.

Essential Safety Guidelines

OPERATION SAFETY
Always treat the crossbow or bow as loaded and keep it pointed in a safe direction. Keep your finger off the trigger until you are sure of your target and what is beyond it.
RANGE SAFETY
Ensure a reliable backstop to prevent over-penetration, and keep the surrounding area free of hard surfaces to avoid bolts shattering or deflecting.
Required Gear Setup
333
Add-on Required

RX ADDER 180LBS Limbs

Unlocks maximum potential, delivering heavy-hitting penetration and firepower for tactical shooters.

Learn more >
333 (1)
Add-on Required

4x32 Red / Blue Scope

Item Code: B10057

Crystal clear 4x magnification for precision aiming beyond 30 meters.

Learn more >
333 (2)
Standard

RX ADDER Standard Bolts

Features high-visibility blue fletching, ensuring exceptional flight stability during rapid-fire cycling.

333 (3)
Add-on Required

EK Targets Bag

High-density layered foam built to withstand frequent, heavy-impact drills.

Learn more >

PACKAGE INCLUDES

7 x 7.5" Carbon Bolts (Blue Vanes, 100 Grain Tip)
1x Aluminum Red Dot Sight
1x Foregrip
1x Buttstock with Buffer Tube
1x ADDER 2.0 Magazine Set 
1x Shoulder Sling
1x Stringer
1x Spare String
2x Limb Tips
1x Safety Glasses
1x Lube Wax

INSTRUCTIONS

Product User & Safety Manual

Includes full instructions and safety information
TOP

Privacy Preferences Center

 

According to the EU General Data Protection Regulation (GDPR), we are committed to protecting your personal data and providing you with control over it. By clicking "Accept All," you consent to our use of cookies to enhance your experience on this website, assist us in analyzing website performance and usage, and allow us to deliver relevant marketing content. You can manage your cookie settings below. By clicking "Confirm," you agree to the current settings.

View Privacy Policy

Manage Consent Settings

Necessary Cookies

Always Enabled

The website relies on these cookies, and you cannot disable them in the system. These cookies are typically set based on your actions (i.e., service requests), such as setting privacy preferences, logging in, or filling out forms. You can configure your browser to block or alert you about these cookies, but this may result in certain website functionalities not working properly.