Problem with AR-15 rear sight aperture

Here's a free lesson for you guys 😀

It (only) cost me a match but in a real life situation this would be a disaster.

This particular stage had 3 hostages (no-shoot targets) and heavily occluded targets so precision shots were crucial.

My decision to choose the wrong aperture has fucked up most of my hits 🙁

What????? Lol…. the big hole in the rear sight is for night time shooting. The small hole is for daytime. I'm ex-military.

What AR is this?

you have to shoot the large aperture alot so that you kinda ignore the rear sight , after some practice it works pretty good and quick at 50-100 meters

How were you zero'd?

"Hey sarge I think my gun is broken!"

It's not parallax you're seeing, it is poor sight alignment due to your head position. Parallax is a PERCEIVED shift of the reticle and is only present with lenses.

The large aperture is not "inaccurate" it is meant to be fast and provide decent effective hits on target. Your hostage hit was a result of poor sight picture(sight placement) on the target, not a large aperture.

With small hole rear sight you can't aim in sitiation with low light, it has same effect asi apputure in camera – it stealling light 🙂 best rear sight is oldschool "buffalo horns" from wild west era. And big diameter of that hole is not too big problem, eye can find center easily, but ofcourse it's for fast shooting, not for sport shooting, I think it's better to war whan AK rear sight which is good for sport shooting but you don't need such accuracy in battle for closer distance.

❤️❤️

It is for night time. For close range you move the front sight above the ring to compensate for lower impact. In fact, I believe the larger ring shoots lower than the small ring, making it inadequate for CQB proper aiming. But yeah, it is mostly useless. The AR has probably the most complicated sighting system out there. Troops are confused by it.

Both of the apertures have different tactical shooting ranges. That being said you also need to "Zero" you iron sight to remove that parallax effect.

I'm a contractor and they told us to use the large aperture for our qual. I listened because as a former marine I never used the 0-2 sight like ever so I thought maybe they knew something I didnt. That was the worst I shot in my entire life. Like you, I learned the hard way.

Wow at least you got the hostage right in the forehead!

have you noticed any looseness in the aperture assembly? i picked up a DPMS upper and the rear aperture tends to slop sideways since the detent is only located on one side. (to see what I'm talking about, give it a slight twist clockwise and see if it rebounds, and how far.)

I have only used the large aperture for night time. Some have said it is for really close range, such as clearing rooms.

The large aperture is not for low light. Can u use it for that sure, but it’s clearly marked 0-2 for up to 200 meters. Doesn’t say low light in any FM (field manual) either. Smaller is from 300-800 meter targets. We never changed from the small…no need to. Luckily the MaTech came out and took that ridiculous large aperture out. Its the guys that don’t shoot their rifles that need big aperture crutch that hurts them in the end. The stick sight on matech is great because it doesn’t block your view of the target and the aperture works like any other buis. Low light your using a Surefire or NVG to identify targets anyways. No need for Big aperture there either. Cant shoot if you cannot identify the potential threat.

All diopter sights suck ass when youre trying to shoot fast

Pozdrav iz Slovenije!

Plz try out different weapons (AR, smg's…) it would more fun to see those videos..

You just have shitty sight alignment, get G U U D.

Spetznaz logic shot in the head of hostage

Hey Ziga, I'd definitely recommend checking out @Regular Guy Training 's video on AR irons

shoot more

Maybe the range officer read the stage instructions wrong saying "shoot the hostage" instead of "shoot the hostage taker" 🤣🤣🤣

No AR 15 is a Beast

I have observed significant POI shift with my A3 style carry handle when flipping from the small to large aperture. The POI shifted 6 minutes of angle LEFT, while the elevation change was approximately where it should have been as per technical manual. This was a pure mechanical issue, and I assumed that I must have simply got a defective A3.

Sweet rifle!

It has been said before but cant find the comment but the big aperture is for close quarters low light and when using a gas mask we used to flip it to the big one during gas mask training hard to get face close enough to see down small hole

What’s the pants with crotch ventilation called ?

Keep the tip of your nose on the charging handle. It will help in aiming. It's good from 0 to 200 meters.

Just had to say it i had the same problem i had two targets and a no shoot between them and i managed to only dome the no shoot and it couldn't have been a better shot if i tried

How did they do it back in the 80s and 90s with iron sights?

The ar does suck but those sights are for different light

I wish I still had the book, but in an old US army training manual it stated the larger sight is actually a ghost ring meant for fast and rough targeting in close quarters and/or low light. The 200 marking on it is more of a suggestion than an indication of it's actual accurate range. The smaller one is a peep sight, the tiny aperture widens the focal length of your eye so you can focus the front sight and the target at the same time. It's a lot like the aperture on a camera.

It kinda sucks the military doesn't still explain how the dual rear sight works, and just gives a generic line about night shooting, at least as far as I've heard.

True moral of story. Use a different rifle and a bigger caliber. Lol- just kidding. Use whatever you’re comfortable with.

Use the larger aperture and make Fuze proud

You killed the hostage

Honest mistake if you are not real familiar with the sight system.

I’d imagine the FSB wants to issue these now

Basically you never use the big aperture. I think anybody who's ever shot an AR-15 learns this in the first five to ten rounds.

You mean people actually still use iron sights? I went LPVO and never looked back.