BOSS 405

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Current Stock:
SKU: 1104
size: 10.00 W × 6.00 H × 32.00 L

A deadly combination of high-octane fire power and agility, the BOSS™ hits targets hard at 405 feet per second. The 6-position AR-style buttstock shortens the crossbows overall length for smaller frame hunters but extends comfortably to fit a variety of medium to taller shooters as well. The dependability and tack driving accuracy Killer Instinct is known for is produced by a new Micro-Lite aluminum barrel that eliminates excess weight while still producing dead-on accuracy. The new X-Lok adjustable foregrip and easy-to-handle narrow frame produces a balanced and compact shooting machine. Finished off with a noise reducing integrated Dead Silent Kit, the Boss 405 is sure to produce deadly results.

  • SPEED - 405 Feet Per Second
  • TRIGGER - 3.5-LB 
  • WIDTH - 14.75" Cocked//18.75" Uncocked
  • LENGTH - 33.5"-36"
  • WEIGHT - 6.7-LB
  • DRAW WT - 220-LB
  • POWER STROKE - 13.25"
  • CAMO - Green Stock//Chaos AE Camo Limbs

Reduced overall crossbow length is easy to handle and lightweight to carry

6-position AR-style buttstock and adjustable X-Lok provide a customized fit 

Enhanced Micro-Lite aluminum barrel and 3.5-pound KillerTech™ trigger for consistent accuracy shot-after-shot 

LUMIX 4 x 32 IR-W Scope, Rope Cocker, String Suppressors, 3-Bolt Quiver, (3) HYPR Lite Bolts (370 Grains) with Field Tips, Stick of Rail Lube 

Accepts Killer Instinct DSC Dead Silent Crank

Included to cover standard, non-wearable parts for the life of the crossbow to the original registered owner.


5 based on 2 reviews. Leave a Review.
Happy with my 3rd KI
Written by WIlliam Miskokomon on Aug 11th 2020

Last year I purchased the 380 Hero and so I decided to have a back up and purchased the 405 Boss. The warranty and customer services is top notch and Killer Instinct is always there to stand behind their products. The Boss is a little louder than my previous crossbows however the speed will make up for the loudness. This is my third Killer Instinct Crossbow and will continue to recommend and purchase Killer Instinct crossbows. The quiver is smaller than previous models and the orientation of the quiver is parallel to the string and might be a problem carrying out to the field. I wish they would give the option to mount the quiver parallel to the rail.

What a great crossbow!
Written by patrick smith on Apr 20th 2020

Received my killer instinct boss 405 crossbow in the mail today after assembling and looking it over this is a well made crossbow! The adjustable buttstock and fore grip makes it great for any size person to shoot it comfortably. The optics that come with the boss 405 are nice and clear and the red and blue illumination color choices that the scope have are nice and bright and will work great in low light situations. It comes with 2 options to mount your quiver, you can mount it parallel to the crossbow or the usual across underneath the limbs. The rubberized pistol grip and fore grip has a real nice comfortable non slip feel to it which I feel will be nice on those long treks into the woods, also, on the bottom of the pistol grip theres a compartment on the bottom that would work well to keep small things in like a hunting license or maybe a plastic bag with some matches and such in case you get stranded or lost. As for shooting the boss 405 it is an absolute blast to shoot!! It has a nice trigger and cocking isnt too terrible but pretty manageable (I'm 5'5" and had no issues cocking it). After shooting 3 bolts into a target 40 yds away I shot a 1.5" group and with speeds of 405fps is pretty impressive in my book and I'm very happy with my purchase and will definitely be buying another crossbow (or 2) from killer instinct

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