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Posted: 3/18/2021 5:33:02 PM EDT
[Last Edit: Molon][Edited]
Ultradyne Back-Up Iron Sights  The new Ultradyne back-up iron sights for the AR-15 are the most innovative back-up iron sights that I’ve used; particularly their HK style front sight. Unlike the fundamentally flawed HK style front sights manufactured by Troy Industries, Precision Reflex, Samson etc, the Ultradyne HK style front sight maintains the proper orientation of the front sight post within the circular front sight “ears” throughout its entire range of elevation and windage adjustment. The entire sight housing moves when making adjustments. You may have noticed in the previous sentence that I said “elevation and windage adjustment.” The unique feature of the front sight having windage adjustment allows you to obtain a no-wind zero by making adjustments solely to the front sight. The Ultradyne front sight employs interchangeable front sight posts. There are currently five different front sight posts available; four of them are aperture posts and one is a blade post the size of the standard A2 front sight post. The interchangeable front sight posts are a proprietary design. Mil-spec front sight posts will not work with the Ultradyne front sight.  The Ultradyne rear back-up iron sight also has interchangeable apertures. Two rear apertures are currently available; a 0.050” aperture and a 0.070” aperture. The rear sight can also be used without either rear aperture installed, giving you a ghost-ring sight picture. The rear sight is also adjustable for windage and elevation.  I mounted the Ultradyne back-up iron sights (with the 14 MOA aperture front sight post and 0.050" rear sight aperture) on one of my Krieger barreld AR-15s. Using match-grade hand-loads and shooting off-the-bench at a distance of 100 yards, I was able to achieve a 10-shot group that had an extreme spread of 0.71”.  .... |
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| Am I right in assuming that these are intended for target shooting at circular targets at known distances? the sight picture being two concentric outer circles with the target at the very center? |
Don't be so open-minded that your brains fall out.
General education should not be mere job training, but training of the mind to reason. https://welltrainedmind.com/a/classical-education/
General education should not be mere job training, but training of the mind to reason. https://welltrainedmind.com/a/classical-education/
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Originally Posted By MRW: Am I right in assuming that these are intended for target shooting at circular targets at known distances? the sight picture being two concentric outer circles with the target at the very center? You can use them for shooting at any shape of targets that you want, at any distances you want. The aperture front sight post does help some people's eyes (mine included) to shoot more precisely at round targets. You can also replace the front sight aperture with an A2 sized front sight post. .... |
All that is necessary for Trolls to flourish, is for good men to do nothing.
In God We Trust. Everyone else must post data.
In God We Trust. Everyone else must post data.
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Originally Posted By zukiphile: I like the idea, and would like to see a front sight post threaded to work with an A2 front sight base. |
What it boils down to is that they fear an effective resistance to their power: So, Left in power=Guns bad, mmmmkay...?, Right in power=Guns good!-thskirk
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As much as they cost, they could've beveled the edges more Those sharp edges on the front and sides make them look super cheap, along with that awful font/engraving Attached File |
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Originally Posted By Molon: Ultradyne Back-Up Iron Sights https://www.ar15.com/media/mediaFiles/28568/ultradyne_front_01-1300675.jpg https://www.ar15.com/media/mediaFiles/28568/ultradyne_rear_01-1300677.jpg The new Ultradyne back-up iron sights for the AR-15 are the most innovative back-up iron sights that I’ve used; particularly their HK style front sight. Unlike the fundamentally flawed HK style front sights manufactured by Troy Industries, Precision Reflex, Samson etc, the Ultradyne HK style front sight maintains the proper orientation of the front sight post within the circular front sight “ears” throughout its entire range of elevation and windage adjustment. The entire sight housing moves when making adjustments. You may have noticed in the previous sentence that I said “elevation and windage adjustment.” The unique feature of the front sight having windage adjustment allows you to obtain a no-wind zero by making adjustments solely to the front sight. The Ultradyne front sight employs interchangeable front sight posts. There are currently five different front sight posts available; four of them are aperture posts and one is a blade post the size of the standard A2 front sight post. The interchangeable front sight posts are a proprietary design. Mil-spec front sight posts will not work with the Ultradyne front sight. https://www.ar15.com/media/mediaFiles/28568/ultradyne_front_02-1300676.jpg The Ultradyne rear back-up iron sight also has interchangeable apertures. Two rear apertures are currently available; a 0.050” aperture and a 0.070” aperture. The rear sight can also be used without either rear aperture installed, giving you a ghost-ring sight picture. The rear sight is also adjustable for windage and elevation. https://www.ar15.com/media/mediaFiles/28568/ultradyne_rear_02-1300678.jpg I mounted the Ultradyne back-up iron sights (with the 14 MOA aperture front sight post and 0.050" rear sight aperture) on one of my Krieger barreld AR-15s. Using match-grade hand-loads and shooting off-the-bench at a distance of 100 yards, I was able to achieve a 10-shot group that had an extreme spread of 0.71”. https://www.ar15.com/media/mediaFiles/28568/ultradyne_buis_10_shot_group_at_100_yard-1300685.jpg .... Apologies for the late post. Is there any data on how rugged they would be for hard use? Clearly, they are outstanding for target shooting. |
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As a part of Ultradyne, I can guarentee whatever you put them through, they will hold up. If something happens to them along the way, we will take care of you. Also, the design has changed since the pictures you posted above. Here's an updated image! - https://ultradyneusa.com/product/c4-folding-front-and-rear-sight-combo/ |
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Originally Posted By GabeDenzine13: Also, the design has changed since the pictures you posted above. Here's an updated image! - https://ultradyneusa.com/product/c4-folding-front-and-rear-sight-combo/  ... |
All that is necessary for Trolls to flourish, is for good men to do nothing.
In God We Trust. Everyone else must post data.
In God We Trust. Everyone else must post data.
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Originally Posted By RayDBonz: There goes that old wives tale that you need a scope to shoot small groups! Think that is going to be eyesight dependent. And as Col. Cooper opined, "Printing tiny groups is only critical if the printing of tiny groups is the object of the exercise, and this is usually not the case." Seems like a one trick pony type of front sight. What do you do when your target is too close or too far for the selected aperture? Yo, can you just stand there while I swap my aperture, Mr Bad Guy? I'll pass 
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Originally Posted By s4s4u: What do you do when your target is too close or too far for the selected aperture? Yo, can you just stand there while I swap my aperture, Mr Bad Guy? Wanna know how I know that you've never even done any shooting with aperture sights. Hint: the target is never "too close or too far for the selected aperture." ... |
All that is necessary for Trolls to flourish, is for good men to do nothing.
In God We Trust. Everyone else must post data.
In God We Trust. Everyone else must post data.
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Originally Posted By Molon: Wanna know how I know that you've never even done any shooting with aperture sights. Hint: the target is never "too close or too far for the selected aperture." ... Rear aperture, yes. Front? Meh! If the target has to "fit" into that aperture, distance and target size matter. |
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Originally Posted By s4s4u: If the target has to "fit" into that aperture, distance and target size matter. And you continue to demonstrate that you have no clue what you're talking about. ... |
All that is necessary for Trolls to flourish, is for good men to do nothing.
In God We Trust. Everyone else must post data.
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Originally Posted By Molon: And you continue to demonstrate that you have no clue what you're talking about. ... I have never used a front aperture, that is true. It seems a solution in search of a problem. Peep and post has been working well for me for 4 decades. My eyes would have a hell of a time seeing anything through that front hole. Again, I'll pass. Knock yourself out, I just don't see an advantage. |
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Originally Posted By Sinister: These look cool. How far does the rear sight elevation knob adjust to? [Ah. The video says 200-600]  I haven't personally verified these specs yet. ... |
All that is necessary for Trolls to flourish, is for good men to do nothing.
In God We Trust. Everyone else must post data.
In God We Trust. Everyone else must post data.
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Originally Posted By BerlinVet: What makes them worth $274? No one makes an elevation and windage adjustable front sight. These guys make a set for Picatinny, but 45 off-sets as well. |
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Originally Posted By Sinister: No one makes an elevation and windage adjustable front sight. Even their less expensive "C2" sights have this unique feature.  ... |
All that is necessary for Trolls to flourish, is for good men to do nothing.
In God We Trust. Everyone else must post data.
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Originally Posted By brk_bigboss: I have the same style on my 1903 camp perry that’s been handed down. Can you post some pics of the sights? |
All that is necessary for Trolls to flourish, is for good men to do nothing.
In God We Trust. Everyone else must post data.
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Originally Posted By RayDBonz: There goes that old wives tale that you need a scope to shoot small groups! It's all about fundamentals of marksmanship! .... |
All that is necessary for Trolls to flourish, is for good men to do nothing.
In God We Trust. Everyone else must post data.
In God We Trust. Everyone else must post data.
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Thanks Molon Iv'e been eyeballing these for a couple years now. My eyes aren't what they used to be, but I still love to get the irons out and challenge myself once and a while. Oh and PS. I see they never got rid of him. What a shame. |
Liberal men are pissing their panties like little girls over guns all the time, like wusses, it's really pathetic that grown men can't act like....well, men.
m14brian
m14brian
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Originally Posted By Molon: Can you post some pics of the sights? Originally Posted By Molon: Originally Posted By brk_bigboss: I have the same style on my 1903 camp perry that’s been handed down. Can you post some pics of the sights? @Molon Don’t know how I missed your request. The rifle is a very accurate. Here you go:     |
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Originally Posted By brk_bigboss: @Molon Don’t know how I missed your request. The rifle is a very accurate. Here you go: https://www.ar15.com/media/mediaFiles/114771/4A044456-4D3E-4695-BBCE-55B624444571-2364378.jpg https://www.ar15.com/media/mediaFiles/114771/DF6E0CA4-F0DC-4053-9CD0-4D1C4E4B8A9D-2364381.jpg https://www.ar15.com/media/mediaFiles/114771/2FDF3FEC-AF02-492C-904C-3C31DCF3C5B2-2364379.jpg https://www.ar15.com/media/mediaFiles/114771/4FDE8333-07EF-4361-963E-99E5FF2031C6-2364380.jpg Nice! ... |
All that is necessary for Trolls to flourish, is for good men to do nothing.
In God We Trust. Everyone else must post data.
In God We Trust. Everyone else must post data.
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Originally Posted By savagemann: I've been checking them out, but wasn't sure if I wanted the ring front post or standard. In Arfcom fashion, get both! ..... |
All that is necessary for Trolls to flourish, is for good men to do nothing.
In God We Trust. Everyone else must post data.
In God We Trust. Everyone else must post data.
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Hate to reopen and old thread, but questions went unanswered: Originally Posted By zukiphile: I like the idea, and would like to see a front sight post threaded to work with an A2 front sight base. Originally Posted By zukiphile: I like the idea, and would like to see a front sight post threaded to work with an A2 front sight base. Originally Posted By SIASL: I’d really like to try the front post. Any chance those will be produced in mil-spec to swap? I put C2s on a new build last summer. Came to very much like the aperture front post, so swapped a C4 10moa post into another sight.  Threaded shaft is a bit longer than mil-std, but it fit my sight fine. Other sights may need a few threads cut off. Presents an interesting co-witness picture with a PA 1x Microprism. Not that a prism needs it, but just in case. 
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