Even with adjusting the drag on the focus knob on ATN's X-Sight II scopes, they still require a pinch or grab with two fingers to change the focus. These focus knobs allow for one finger adjustments, improving the ergonomics and making your response time quicker.

They work equally well in stalk, blind or stand hunting.

Knobs can be painted using a plastic primer before final color coat.

See the video below for mounting instructions. The knobs are designed to fit tight, and during installation the fitment can seem too tight, but that is by design.



If you're mounting your IR illuminator on the side of your ATN scope, there may be some clearance issues with the original knob and the light.

 To determine if there are any clearance issues, measure from the right of your illuminator bell to the left of your knob.

I have confirmed that the T38 Evolva and the ATN IR850 Pro are large enough to need the smaller knob.



If the measurement is 5/8 inch or more, the 7 Star knob will fit without hitting the illuminator.

If it's between 1/2 and 5/8 inch, then the illuminator will interfere with the original 7 star sized knobs, and you should order the smaller 6 Star knob or adjust the position of the illuminator forwards or backwards to a position that doesn't hit the knob.


Current Stock:
3.00 (in)
1.00 (in)
3.00 (in)
Knob Style *

Bulk Pricing Available

  • Buy 2 - 4 and get 10% off
  • Buy 5 or above and get 20% off


Reviews Hide Reviews

Focus knob

Jay P Kidder on Dec 29th 2017

If you have an atn you need this! Simple!

Focus Knob X-Sight II 3-14

Jerry Keefauver on Dec 19th 2017

As many of you probably know, hunting in cold weather makes the X-sight focus knob almost impossible to turn with gloves on. The Black Cat Focus Knob is the perfect remedy for this problem. Fit and finish are exemplary in my opinion. Now I can adjust the focus with ease in subzero weather. I highly recommend this device if you plan to hunt in conditions below freezing.


Ryan Hale on Dec 4th 2017

If you are thinking about getting an X-Sight.....you should have gotten this already!!! This is a must if you even want to attempt to move the focus knob!!! Would have paid double what I did.

Focus wheel atn x sight 2

Glenn Lilley on Sep 18th 2017

Brilliant fit, a treat to use, so much easier

Focus wheel

Scott Dalrymple on Aug 14th 2017

Worth it's weight in gold. A must-have.