Killer Instinct Lethal 405 Reviews – If it’s crossbow expertise you seek, then you’ve certainly set your sights on the right place. Direct your attention to the Killer Instinct Lethal 405 – a crossbow that has been making waves in the archery world. Designed for both precision and power, this model offers a blend of speed and accuracy that appeals to both beginners and seasoned hunters alike.

As delve into its features together, I’ll walk you through its impeccable build quality, its rapid-fire capabilities, and those little design nuances that set it apart from the rest. The Lethal 405 isn’t just another crossbow; it’s an experience. Join me as we uncover what makes the Killer Instinct Lethal 405 a formidable contender in the crossbow arena.

Ready to take aim at the details?

Killer Instinct Machine Crossbow Review 2023

Killer Instinct Lethal 405 Crossbow Package Reviews

First Impressions

The crossbow feels comfortable in the hand. A Killer Instinct article describes these rubberized grips as having a very comfortable feel. Since X-Lok foregrips can be gripped however you want, they can be held in pretty much any direction. In addition to being flipped over, the crossbow’s foregrip can be held in several ways. As well as protecting your fingers, the X-Lok foregrip reduces the chances of them getting tangled in the string.

  • A 4×32 non-illuminated scope is included with this crossbow. This crossbow will be perfect for beginners or those on a tighter budget.
  • Although the Killer Instinct Lethal 405 is available with a variety of accessories, it remains a relatively lightweight crossbow.
  • Observations indicate that the Killer Instinct Lethal 405 is a great crossbow at an affordable price. Further details will be provided on its performance.

Design and Durability

Crossbow manufacturers Killer Crossbows utilize a lightweight aluminium adjustable stock called Micro-Lite to keep their crossbows lightweight. Lethal 405’s accessories are included, so the package weighs in total at 7.2 lbs.

  • The Lethal 405 from Killer Instinct is not only lightweight, but also immensely portable. It measures 34.5 inches in length and is incredibly compact. In an uncocked state, a Lethal 405 measures 18.75 inches wide. In cocked state, it measures 14.75 inches wide.
  • The power stroke is 14.5 inches and the kinetic energy of 134 foot-pounds, combined with the HYPR Lite Arrows, make this crossbow extremely accurate.
  • By including the Dead Silent Kit with Killer Instinct, the crossbow becomes significantly quieter and more vibration-free. As part of the Silencing Kit, you’ll find silencing devices and dampening devices to ensure an extremely silent Lethal 405 when firing.

Furthermore, the weapon includes an X-Lok foregrip that is mounted on a Picatinny rail and can be rotated in any direction for a variety of grips.


The scope on this crossbow measures 4 x 32 without illumination. Its multiple aiming points are complemented by a glass etched finish. Crossbow hunters’ first crossbow, since it’s such a basic scope, would love this scope.

You can’t complain about a scope that’s so cheap, but if you want to upgrade then it’s worth considering. It is still extremely affordable, even after including a new scope, and it is even more complete!

From a previous review of the Furious Pro 9.5, I installed the scope from it on the Lethal 405 so it could be used as a scope. One major difference between the scope on the Lethal 405 and the scope that was originally mounted on it is that the Lethal 405’s scope lacks lens covers and illumination. Other than that, the scopes are the same. The aiming points and magnification are the same.

Noise Reducing Features

Killer Instinct’s Lethal 405 crossbow provides noise and vibration dampening by featuring string and limb dampeners. The kit is marketed by Killer Instinct as “Dead Silent kit.”.

Installing string dampeners reduces the sound created by the strings. A rubber dampener acts as a shock absorber within the split limbs. Crossbow limbs become less noisy and vibrational when they “relax” after shooting.

The “Dead Silent Crank” can also be purchased separately. In addition to its seemingly endless draw weight, this gun is dead silent, according to Killer Instinct.


Before I put the Dead Silent kit through its paces, I was impressed with the Killer Instinct Lethal 405 Crossbow. The shooter should be quiet.

  • The Lethal 405 fires arrows at a speed of 405 feet per second with its included 20-inch HYPR Lite arrows. There are 3 HYPR carbon arrows in this package, each containing a field tip. Each 20-inch-long field tip weighs 370 grains and measures 100 grains long.
  • This crossbow has a standard trigger pull of 3.5 pounds. Safety switches automatically engage when there is no fire in the fireplace. A crossbow with this low price has a smooth trigger and very little creep.
  • In the scope section, a 4×32 illuminated scope has been swapped for the non-illuminated 4 x 32 scope. They are identical aside from the illumination.
  • According to Killer Instinct’s scopes, it’s pretty obvious. After you sight in at 20 yards, sight in at your other aiming points. An illuminated and an unilluminated scope are both equally accurate. When using a crossbow, I prefer scopes with illumination.

By using the rope cocker that comes with the Lethal 405, you can pull about 100 pounds. Beginner crossbow hunters may have a hard time getting used to this, but it’s not impossible for experienced crossbow hunters. People suffering from shoulder, back, or neck pain may be interested in the “Dead Silent Crank” created by Killer Instinct.

  • It’s now just a matter of testing speed and accuracy. My package came with three HYPR arrows, and that was enough for me. Using the scope, I was able to hit targets at 50 yards dead-center in a jiffy. When shooting at the same spot repeatedly, you will most likely “Robin Hood” some arrows! The crossbow can easily achieve 1-inch groups.
  • With some HYPR bolts, I shot the Lethal 405 over a chronograph and got some nice results. I even got a few over 400fps! The frames per second were 403, 401, and 404. It is an affordable game. When hunting with it, you will have a fast, quiet, precise, balanced, and comfortable hunt.

Using this gun, you’ll be able to hunt quickly, quietly, precisely, and comfortably.


The Lethal 405 crossbow is offered by Killer Instinct with rope cocking devices. Rope cockers can reduce the drag by as much as 50%. 210 pounds of draw weight makes it quite difficult to rope-cock this crossbow.

Assembly and Sighting-In

The crossbow does not arrive assembled because Killer Instinct is a budget brand. It must be assembled by the user. You must carefully follow the instructions to assemble Killer Instinct crossbows.

Arrows & Broadheads

With this crossbow package, you receive Killer Instinct HYPR Lite arrows. You can use these arrows to practice shooting and for hunting. I recommend sticking with this pack of 6 arrows since they are also not expensive.

A good broadhead is essential for hunting. Injured animals should not run away from you. In my opinion, the RAGE NC X-TREME COC broadheads are the best broadhead money can buy.

Storage and Transportation

There is no character named The Lethal 405 in Killer Instinct. The cost prohibits it. Nonetheless, the crossbow has a place in the game. Maintaining your crossbow equipment in a crossbow case will keep it cool and dry.

What We Like

  • Low-cost.
  • Accurate & Fast.
  • Holding comfortably.
  • Dampeners for Strings & Limbs.
  • Included in Pro-Package.
  • Compatibility with Dead Silent Crank.

What We Don’t Like

  • Scope without illumination.

FAQs – Killer Instinct Lethal 405 Crossbow Review 2023

Is the Killer Instinct Fierce 405 a good crossbow?

Yes, the Killer Instinct Fierce 405 is considered a good crossbow, suitable for both beginners and seasoned hunters due to its combination of power, precision, and speed.

How fast does the Killer Instinct 405 crossbow shoot?

It can shoot arrows at speeds of up to 405 feet per second (FPS).

How long is the Killer Instinct Lethal 405 crossbow?

It measures approximately 34.5 inches in length.

How far can you shoot a Killer Instinct crossbow?

Typically, it’s effective for hunting at distances of 40-60 yards, but with the right conditions and experience, some users might achieve a longer range.

What crossbow has the most FPS?

Yes, that’s correct. As of 2023, the fastest crossbows on the market are capable of speeds over 500 feet per second.

What is the strongest fastest crossbow?

Yes, the Ravin R500 and TenPoint Nitro 505 are still the fastest crossbows on the market in 2023, both with speeds of 500 fps.


Killer Instinct’s Lethal 405 crossbow is an excellent choice for novice and expert hunters alike. I consider it the best crossbow you can buy. Crossbows of the same price range are not as accurate, faster or cheaper as Lethal 405’s. This bow is less durable than a crossbow due to its cheaper construction.

Also, Read: