Answers for With both sights in the fully upright position, are they high enough to see over the top of HOLOSUN 510C-GR red dot sight and Holosun HM6X magnifier?

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Ultradyne C4 Folding Front and Rear Sight Combo

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Manufacturer Answer

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Answered by Ultradyne USA, Manufacturer from MO, United States, on August 14, 2026

Hi Craig,
Thank you for reaching out! the C4 sights are standard AR height, and the 510C-GR sits at a 1.41" absolute co-witness height, so it lines up with them normally. The HM6X doesn't add its own height; its adjustable spacer syncs it to whatever height your red dot is set at. So both should co-witness fine with the C4 sights upright. We'd still recommend a quick dry-fit once everything's in hand just to confirm for your specific setup.

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Ultradyne + AR15 Accessories Ultradyne AR15 Accessories Ultradyne C4 Folding Front and Rear Sight Combo Ultradyne C4 Folding Front and Rear Sight Combo Q&A Question - With both sights in the fully upright position, are the Ultradyne + AR15 Accessories Ultradyne AR15 Accessories + AR15 Iron Sights Ultradyne AR15 Iron Sights Ultradyne C4 Folding Front and Rear Sight Combo Ultradyne C4 Folding Front and Rear Sight Combo Q&A Question - With both sights in the fully upright position, are the Ultradyne + Gun Parts Ultradyne Gun Parts Ultradyne C4 Folding Front and Rear Sight Combo Ultradyne C4 Folding Front and Rear Sight Combo Q&A Question - With both sights in the fully upright position, are the Ultradyne + Gun Parts Ultradyne Gun Parts + AR 15 Parts Ultradyne AR15 Parts Ultradyne C4 Folding Front and Rear Sight Combo Ultradyne C4 Folding Front and Rear Sight Combo Q&A Question - With both sights in the fully upright position, are the Ultradyne + Gun Parts Ultradyne Gun Parts + Rifle Parts Ultradyne Rifle Parts + AR 15 Parts Ultradyne AR15 Parts Ultradyne C4 Folding Front and Rear Sight Combo Ultradyne C4 Folding Front and Rear Sight Combo Q&A Question - With both sights in the fully upright position, are the Ultradyne + Gun Parts Ultradyne Gun Parts + Rifle Parts Ultradyne Rifle Parts Ultradyne C4 Folding Front and Rear Sight Combo Ultradyne C4 Folding Front and Rear Sight Combo Q&A Question - With both sights in the fully upright position, are the

Last updated 2026-08-11 UTC.