Killer Instinct Fatal X Crossbow

Complete Killer Instinct Fatal X Crossbow Review

Are you a hunting or shooting enthusiast looking for a high-performance crossbow? If so, you might want to check out the Killer Instinct Fatal X Crossbow. This crossbow is designed to take your hunting and shooting experience to the next level with its impressive speed, accuracy, and power.

As an expert in hunting and shooting, I have had the opportunity to use this crossbow extensively, and I can say with confidence that it is worth considering. In this review, I will provide a detailed analysis of the Killer Instinct Fatal X Crossbow, exploring its various features and specifications.

One of the most impressive things about this crossbow is its speed. With a velocity of up to 405 feet per second, this crossbow is exceptionally fast, making it suitable for taking down a game of any size. 

By the end of this review, you will have all the necessary information to make an informed decision about whether or not the Killer Instinct Fatal X Crossbow is the right choice for you.

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What’s Included In The Package?

With each package of  Ravin R10 crossbow, you’ll find:

  • Killer Instinct Fatal X crossbow
  • Sled Rope Cocker
  • LUMIX 4×32 IR-E Scope
  • 3 x 20-inch HYPR Bolts (390 Grains) with Field Tips
  • Quiver
  • Stick of Rail Lube

Killer Instinct Fatal X Crossbow Specs

Killer Instinct Fatal X
Draw Weight195 lbs
Arrow Length20″
Power Stroke13.5″
Velocity405 FPS
Weight7.2 lbs
Width9.75″ (uncocked)/ 6.25″ (cocked)

Pros I love:

  • Durable and accurate
  • Silent cocking mechanism.
  • Great price value

Cons I found:

  • No decocking mechanism. 


The Killer Instinct Fatal X Crossbow is designed for quick and easy assembly, allowing you to get out into the field as soon as possible. The package includes all the necessary components to assemble the crossbow, including an AR pistol grip and forearm, Lumix 4X scope, and quiver mounting bracket.

To assemble the crossbow, start by attaching the AR pistol grip and forearm to the barrel assembly. Ensure that the pistol grip and forearm are securely fastened to the barrel assembly, as this will provide a comfortable and stable grip while shooting.

Next, mount the Lumix 4X scope onto the crossbow. The scope is included in the package and is designed to provide exceptional clarity while shooting. The scope comes in a box and will need to be mounted onto the Picatinny rail on the crossbow. Be sure to adjust the scope to your specific eye relief and preferences.

Killer Instinct Fatal X Crossbow Top View

Finally, install the quiver mounting bracket onto the full-length Picatinny rail. The quiver mounting bracket is designed to securely hold your arrows while hunting or shooting, ensuring that they are easily accessible when needed.

Size and Weight

The Killer Instinct Fatal X Crossbow is designed to provide hunters and shooters with a compact and maneuverable crossbow that is easy to carry and handle in the field. The crossbow features an AR-style stock that is collapsible, allowing for easy storage and transport.

When the stock is collapsed, the crossbow measures 29.75 inches in length. With the stock extended, the crossbow measures an overall length of 31.50 inches, providing a comfortable and customizable fit for any shooter. 

The narrow width of the crossbow, axle to axle, is 9.75 inches when uncocked and a mere 6.25 inches when cocked, making it highly maneuverable and easy to handle in tight spaces.

In addition to its compact size, the Killer Instinct Fatal X Crossbow is also relatively lightweight, weighing in at exactly 7.2 pounds. This makes it easy to carry for extended periods of time without adding extra weight or strain to your arms and shoulders.

Design and Durability

The Killer Instinct Fatal X Crossbow is built with both form and function in mind. The crossbow features a well-designed, adjustable buttstock that provides a custom-tailored length of pull for each shooter. 

This allows for a comfortable and secure grip, regardless of the shooter’s size or stature. Additionally, the crossbow’s multi-position design and compact size make it easy to handle in any situation.

killer instinct fatal x crossbow side view

In terms of durability, this crossbow is designed to withstand the rigors of hunting and shooting. The crossbow features a synchronized, highly efficient design with a 50% let-off, which makes it easier to cock and smoother and quieter on the shot. 

This design also helps to reduce wear and tear on the crossbow’s components, ensuring that it will last for many hunting seasons to come.

The crossbow is also built with high-quality materials, including a CNC-machined aluminum rail and riser, which provide excellent strength and durability. 

The crossbow’s limbs are made from durable composite materials that are designed to withstand the stresses of repeated use, while the string and cables are made from high-strength materials that are built to last.


The Killer Instinct Fatal X Crossbow comes equipped with a high-quality LUMIX 4×32 IR-E scope, which is specifically designed for modern crossbows that shoot at speeds above 300+ FPS. 

The scope’s compact, slimline design makes it easy to handle and maneuver, while its multi-reticle aim points and rheostat brightness illumination (red or blue) make it ideal for use in low-light settings.

Killer Instinct Fatal X Crossbow Scope

One of the key features of the LUMIX scope is its multicoated optics, which provide exceptional clarity and sharpness, even in low-light conditions. The scope also features a 1-inch monotube construction, which provides added durability and reliability, and a fast-focus eyepiece that allows for quick and easy adjustments to the focus of the reticle.

In addition to its superior optics, the LUMIX scope is also designed to be highly durable and resistant to the elements. The scope is nitrogen purged, which means that it is water, shock, and fog-proof, making it ideal for use in all types of weather conditions.


The Killer Instinct Fatal X Crossbow features an integrated Rapid Draw Crank (RDC) system that makes cocking the crossbow quick and easy. The RDC system is highly efficient and effective, allowing users to cock the crossbow quickly and quietly, making it an ideal choice for hunters who need to remain stealthy in the field.

The crank is ergonomically designed to fit comfortably in hand, and the system is easy to attach to the crossbow’s stock. The RDC system also features a built-in level that ensures that the crossbow is properly aligned during the cocking process, which helps to improve consistency.

While the RDC system is a great feature, it’s worth noting that this crossbow does not come with a decocking feature. This means that users will need to discharge the crossbow safely or use a specialized decocking bolt to uncock the bow safely.


The Killer Instinct Fatal X Crossbow comes equipped with a 3.5-pound trigger that provides excellent control and functionality. While the trigger weight may be heavier than other crossbows in the Killer Instinct lineup, it’s important to note that the weight is intentional and provides a consistent and reliable trigger pull. 

The Fatal X Crossbow lacks creep. Creep is the unwanted movement of the trigger that occurs before the trigger actually releases the crossbow. This can be a significant problem for hunters and shooters, as it can cause the crossbow to fire prematurely or inconsistently.

Fortunately, the trigger on the Fatal X Crossbow has been designed to minimize creep and provide a consistent, smooth trigger pull. 


The Killer Instinct Fatal X Crossbow is a high-performance crossbow that has been designed to deliver excellent speed and accuracy. With its powerful 13.5″ power stroke and new X Cams featuring a 50% let-off, the Fatal X is capable of firing arrows up to 405 FPS with a stunning 142 ft. lbs. of energy. 

This makes it an ideal choice for hunters and shooters who demand the best in speed and power.

The crossbow is capable of delivering deadly accurate shots at targets of up to 100 yards, making it a highly effective choice for hunters and shooters who need to take long-range shots. 

The crossbow’s combination of speed, power, and accuracy make it a versatile and effective choice for a wide range of hunting and shooting situations.

Recommended Accessories

To enhance the performance of the Killer Instinct Fatal X Crossbow, we have a list of recommended accessories. Use these to get even better outcomes.


We recommend using the HYPR HYPR 20 Inch Carbon Crossbow Bolts are a top choice. These bolts are made from high-quality carbon, which makes them both lightweight and strong. 

The dense grain construction of the carbon helps to improve penetration, stopping power, and knock-down, which is important for taking down large game animals.

killer instinct hypr 20 carbon crossbow bolts

The bolts come with 3-inch vanes that provide stability and help guide the bolts on their trajectory. The moon nocks are designed to fit snugly to the bowstrings and are compatible with all Killer Instinct Crossbows. 


While there are many broadheads to choose from, the Rage Crossbow X mechanical broadheads are an excellent choice to pair with the Killer Instinct crossbow. These broadheads feature a compact design that’s aerodynamic and accurate, allowing for deadly precision when hunting. 

Rage Crossbow X

The razor-sharp blades are deployed upon impact, and the large wound channels result in massive blood trails for easy tracking of your prey. These broadheads are built with a reliable, no-fail shock collar system that ensures proper blade retention during flight and impact. 

Storage and Transportation

The Killer’s Slayer Crossbow Case is an excellent choice to protect and transport your crossbow. The case is constructed with a durable 600D polyester fabric and features padded walls to safeguard the crossbow from damage. 

Killer instinct slayer crossbow case

The interior of the case is customizable with adjustable Velcro straps to ensure a secure fit. The case also has multiple storage compartments for accessories and arrows and a comfortable carrying handle and shoulder strap for easy transport. 

How To Maintain Your Killer Instinct Fatal X Crossbow? 

Proper maintenance of your crossbow is essential to ensure its longevity and optimal performance. Regular maintenance can prevent issues like rust, corrosion, and wear and tear, which can affect the accuracy, power, and performance of your crossbow. Here are some tips on how to maintain your crossbow:

  1. Keep it clean: After each use, clean the crossbow with a soft, dry cloth to remove any debris, dust, or dirt. Pay special attention to the rail and string to ensure they are free of any debris.
  2. Lubricate the rail: Apply a rail lube to the center serving of the string and to the rail every 100 shots or after every hunting season. This helps to reduce friction and extend the life of the string and rail.
  3. Check the string and cables: Regularly inspect the string and cables for any signs of wear or damage. Replace any damaged or worn-out strings and cables immediately.
  4. Store in a dry place: Store your crossbow in a cool, dry place when not in use. Avoid leaving it in a humid environment or direct sunlight, as this can cause damage to the crossbow.
  5. Check the bolts and accessories: Before each use, inspect the bolts and accessories to ensure they are properly tightened and secured.

Final Words

Our Rating of the Killer Instinct Fatal X Crossbow






Final Rating

The Killer Instinct Fatal X Crossbow is an exceptional crossbow that is well-suited for hunting and shooting enthusiasts of all levels. The crossbow’s well-designed and durable components, including the adjustable buttstock, CNC-machined aluminum rail and riser, and high-strength limbs and strings, ensure that it will last for many hunting seasons to come.

In addition, the crossbow comes equipped with a high-quality LUMIX 4×32 IR-E scope and an integrated Rapid Draw Crank system, making it easy to aim and cock the crossbow quickly and quietly in the field.

However, like any other piece of equipment, it requires regular maintenance to ensure it remains in top condition and performs at its best. 

Overall, if you’re in the market for a high-performance crossbow that can help take your hunting and shooting experience to the next level, the Killer Instinct Fatal X Crossbow is definitely worth considering.


Killer Instinct is a reputable brand in the hunting and archery industry, known for producing high-quality crossbows that offer accuracy, power, and speed. The Killer Instinct Fatal X Crossbow is one of their top-performing models, featuring advanced technology, superior design, and exceptional performance. 

The Killer Instinct Fatal X Crossbow is rated at 405 feet per second (FPS) with factory-supplied 390-grain arrows. 

The Killer Instinct Speed™ 425 Crossbow is currently the fastest crossbow produced by Killer Instinct. It has a speed rating of 425 feet per second and generates up to 156-foot pounds of kinetic energy.

A good crossbow’s FPS (feet per second) can vary depending on its intended use. Generally, a crossbow with an FPS of at least 300 is considered powerful enough to hunt small games like rabbits and squirrels. For larger game animals like deer, a crossbow with an FPS of at least 350 is recommended.

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