Home AR-15 Smyth Busters: Do You Need Backup Sights on Your AR-15?

Smyth Busters: Do You Need Backup Sights on Your AR-15?

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Those know-it-alls on the Internet, the elusive “they,” are at it again! They’re saying that if you don’t have a quick-detach mount on your AR-15’s scope, you might as well not bother with backup sights. Their theory is that if your primary optic is securely clamped down, you won’t be able to remove it in an emergency to deploy those backup sights. Steve points out that some optics, like Aimpoint red dots, are short enough they don’t cover a rear backup sight, so it doesn’t matter if they’re on a QD mount.

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44 COMMENTS

  1. Yeah I mean the only time I don’t have rear backup sights is if I have the long Eotech 512 which leaves no room for iron sights on my particular build. And if that optics battery were to go down I have spare batteries in the grip of the weapon so it’s not needed anyway. Plus if I’m in a close engagement and my optic goes down for any reason, the triangle sight post of my rifle acts as a reference point for my point of aim in a pinch so it’s a non issue for me.

  2. I can see where it could be useful in some limited circumstances, basically only in competition. But in general there is no point in having back up sights if they dont clear the sight, or you have a QD mount.

  3. Not to mention if your running tactical games, you should also have your most valuable tool with you… Your prybar bayonet to take off that broken scope… And if you don't have your bayonet with you, then you shouldn't be there 😂

  4. Doesn't your optics eye relief allow it to be moved forward to clear the rear sight? This setup, as is, can cost you a stage if the optic fails mid-stage. Being able to rapidly raise the backups for immediate use can make a world of difference. Mine has co-witnessed sights so that I'm not rushed to remove a non-functional optic in a critical situation. To each his own. IMO.

  5. I love you you turned that rifle towards you just to yank people's chains. I have 45 degree sights on my 308 because it has a fixed 6x scope. If people don't approve of my gun then they can kiss my other one.

  6. I have backups on all of my AR's except one where the scope is simply too fat for a rear backup to fit. And I have QD bases on all of my optics. OK, I'm anal about this, I'll admit. No real need for a QD base on my red dots as I can still see and align the backups through the red dot.

  7. Most ppl running a red dot should have a backup iron sight in case of a dead battery. This doesn’t apply to all optics of course. The more expensive brands that have solar panels are more dependable but anything can happen and you should be able to aim effectively in any scenario. It could mean the difference between life and death.

  8. All the gear gets back to the main situation: what's going to happen or is going on. You can't address all alternatives, but you can address many. The LE training has focus based on real world situations. Might as well train like the pros.

  9. To many what ifs. No back ups on bolt, lever actions. Remington or browning semi autos, no buis. Have good optics or what ever you like, and you are good to go. I love ar15s. Problem is they are so modular. So easy to turn a light weight gun into a effort to carry and shoot.

  10. Wisdom is earned not given. Most people these days are echo chambers of who might be their favorite YouTuber of the month. I hear alot of ridiculous stuff coming from these so called experts. Redundancy is King no matter what the " expert " says.

  11. Yuk! Yuk! Scenario; wha if, in REAL gunfight, opponent shoots dead-center of your scope, the sheer force ripping your scope completely off!! With your forethought, of having bak-up sites, you're good to go…yuk, yuk… Jus sayn. Always better to be Dead Right!

  12. If your gonna spend the money on a high dollar scope mount why NOT buy one that is QD, like ADM? Gets you back in an “accurate” gun fight sooner rather than sitting down, finding your leather man, unscrewing the bolts then getting back in the fight. What if your low on ammo and need to make each shot count? What if your team is depending on you? Especially if you have to make accurate shots at distance? BUT DEFINITELY HAVE IRON SIGHTS! They are the “primary” sights if you ask anyone in the military. But to each his own as long as it’s ONLY your ass on the line. BTW when shits hitting the fan and bullets are flying around you, let’s see your fine motor skills try to unscrew a small screw. Good Luck.

  13. As an American, I say you do whatever you want. Trusting fine motor skills in a gunfight probably isn't a good idea, but as you said, you're shooting as a civilian. Are locking lever-type mounts really that expensive?

  14. if running an LPVO or scopes in general, I prefer something offset, since that way I don't have to ditch the scope if something happens and I need to use backup. because even if it is damaged it is expensive.

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