BudsGunShop.com - Co-witness?

Question

Co-witness?

Asked 07/23/2025 01:31 PM CT
by Andrew G in Hand Gun

Heckler & Koch CC9 Micro Compact 9mm, Holosun 407K Red Dot Sight, 12+1
Do the installed iron sights co-witness through the red dot's window? They look a little low in the image but it's hard to tell. Thanks!

5 Answers

You must log in to ask, or respond to a question

07/24/2025 12:09 AM CT
by Ric F - Lifetime Points: 1056

Good evening to you!! The CC9 Micro Compact, 9mm, 3.32" Barrel, Optics Equipped, Holosun 407K, Black, (1) 10-rd & (1) 12-rd co-witness in the lower 1/3rd of the optic. Hope this helps. Have a good rest of your day.
🇺🇸🇺🇸 'merica' 🇺🇸🇺🇸

07/23/2025 07:28 PM CT
by Jason L - Lifetime Points: 3947

It'll be a 1/3 co-witness.

07/23/2025 03:10 PM CT
by James G - Lifetime Points: 92018

Hi Andrew and welcome. The sight is only a lower 1/3rd co-witness with the current sights. Cheers, stay safe and enjoy!

07/23/2025 02:46 PM CT
by Kenneth L - Lifetime Points: 50

Hello Andrew, the red dot does sit too high to co-witness with the iron sights. Hope this helps and happy shooting!

Ed C · Accepted Answer · 2025-07-24T10:34:04-04:00

07/24/2025 10:34 AM CT
by Ed C - Lifetime Points: 23434
Chosen as Best Answer

Hi Andrew, the slide features a deep RMSc-pattern cut to support the co-witness of standard-height sights in the lower third of an optic’s window.
See co-witness video here, 407K is at 1:27 >>> youtube.com/watch?v=rct-M3Jd8aA
Stay safe & have a great day!

BudsGunShop.com - Co-witness?

Unanswered Questions

Categories

Co-witness?

5 Answers

Receive Money Saving Offers

Catalog

Information

Partners

SUBSCRIBE AND SAVE!

GET EVEN MORE!

THANK YOU!