Reviews & Ratings for Osight SE 1x 21x14mm Reflex Red Dot Sight

Osight SE 1x 21x14mm Reflex Red Dot Sight

As Low As $159.99

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Most Helpful Positive Review Old Guy review

I have been target shooting for 72 years. Most of the time with iron sights and lately with scopes on rifles. I had some minor experience in the military but mostly target shoot for pleasure. Just recently one of my sons asked me to try his Sig that had an expensive red dot mounted. I fired a few rounds but because of the recoil I didn’t give it a fair test. Later I decided to investigate further and purchased an Osight SE and mounted it on my PX4 Compact Carry. Mounting and zeroing was fairly easy. Once I got to the range I was very surprised as the results. My honest feeling is “it’s like c...
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Enclosed - fit well - RMSc footprint - Was Demo but box sealed

by Dave-in-Texarkana, Verified Owner from TX, United States Written on July 28, 2026

I have many Olight/Osight products. This is my fully enclosed emiter. I put it on a CZ P-09 Com and the fit was perfect - it zeroed fine and the brightness adjusted well for in the house and outside on a bright sunny day. it's as advertised. This was suposedly a Demo/Open box, but the box had the plastic still sealed so a fair price too. I'm not sure why my review isn't being accepted when I hit submit??

Pros:

Price
Quality
Fit

Cons:

None

Best Used for:

RMSc footprint

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Best optics at great prices

by Pugamus, Verified Owner from TX, United States Written on July 11, 2026

I’ve always purchased my optics through this site and honest I’ve never had a problem. The returns are rare and the warranties on these are superb. I love finding the demo models at a cheap price. I had many red dots and none of them crapped out yet. Replaced maybe 2 batteries in about 3 years. I have so many optics and they’re still truckin’

Pros:

Affordability and ruggedness

Cons:

None

Best Used for:

CCW & Home Defense

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great optic for the price

by TWizzle, Verified Owner from GA, United States Written on June 16, 2026

Great quality for the price and was very easy to zero within just a few shots and held zero for several rounds after.

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SE 2MOA DOT& 32MOA CIRCLE RED DO

by NJ2A, Verified Owner from NJ, United States Written on May 21, 2026

I mostly buy Holosun red dots but thought I'd give this a try and NO complaints. It has the enclosed emitter and nice clear glass. I installed it on a Glock G30S after having the slide milled and no overhang, it looks like it was made for it. The only issue I had and the right side 6-32 screw was a bit too long and bottomed out on the extractor internally rendering the extractor inoperable. After finding the problem I was able to grind off enough material from the screw and not damage the threads. The 6-32 left side screw length was fine out of the box but YMMV. I’m giving it Five Stars and would buy again.

Pros:

GREAT PRICE
Nice looking
Great feature, ergonomics, finish, design

Cons:

lack of 6-32 screw lenght selection

Best Used for:

Range
Home defense

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Wonderful Optic, Great Price

by Cro, Verified Owner from OK, United States Written on May 17, 2026

I have long awaited a reliable, budget friendly optic that works well with the conceal carry lifestyle. This is the one for me. Works beautifully.

Pros:

Small
Enclosed Emitter

Cons:

None

Best Used for:

RMSc
Concealable

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Nice budget option

by Robb C, Verified Owner from MI, United States Written on May 2, 2026

Clear and bright. Mounted easily. easy to zero. This one is on top a Burris 3x prism which is mounted to a S & W Response AR9. My setup is purely a range toy but functions well for both distance and close range steel targets. Looks really cool too!!

Pros:

Bright & clear dot
Easy to mount & zero.

Cons:

wish it was available with green reticle

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Better than the 507K

by Lumpy, Verified Owner from NC, United States Written on April 4, 2026

Put it on my Glock 43XMOS and it needs no adapter, unlike the Holosun. Being a closed mirror, there is a lot less dust on my everyday carry, and it is much easier to clean. I also feel that the window is bigger, allowing me a faster site picture.

1 of 1 found the following review helpful.

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very crisp

by mark, Verified Owner from MA, United States Written on March 29, 2026

I love everything olight makes & they have such a awesome warranty just incase. I like how this is enclosed and you can switch the reticle

Pros:

Clear crisp easy to zero

Cons:

Best Used for:

great on a 365 !!

1 of 1 found the following review helpful.

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Great Optic

by Whiskey617, Verified Owner from GA, United States Written on March 26, 2026

Love the enclosed emitter for the price. Have used alot of RDS over the years this is my first Osight defently will buy more. Installed on a comped micro dagger. Sight is very well packaged easy to install. Sight has very good daylight brightness easy to use features, reminds me of a holosun alot. clear glass and sits well on the slide not to tall. Overall a great buy!!

Pros:

battery access
Motion activated on

Cons:

None

Best Used for:

2 of 2 found the following review helpful.

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for now lets see

by jaja, Verified Owner from MA, United States Written on March 25, 2026

Since I haven’t tested yet at the range I’ll keep it at a four star but I do like it so far

0 of 2 found the following review helpful.

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Reviews & Ratings for Osight SE 1x 21x14mm Reflex Red Dot Sight — 30 reviews — Page 1