The 300 Blackout is known for its adaptability as both a subsonic and supersonic round. The ideal red dot sight for your 300 Blk rifle depends on your intended use. Considerations like close-quarters target acquisition, potential night vision compatibility, and durability become important factors in your decision.

Top 6 Best Red Dot Sight For 300 BLK

Aimpoint T2

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Let me tell you, the Aimpoint T2 has become my go-to red dot sight for my 300 Blackout. It's a pricey little bugger, but for what you get, it's absolutely worth it. Here's the rundown from my experience:

Specs:

Tiny footprint: This thing is lightweight and barely adds any bulk to my rifle. Perfect for maneuvering in tight spaces.

2 MOA red dot: Big enough for quick target acquisition, yet precise for accurate shots.

50,000-hour battery life: Practically never have to worry about it dying mid-use. That's insane!

Night vision compatible: Lets me switch to night vision without messing with the sight.

Best Features:

Ruggedness: This red dot is built like a tank. I've banged it around during drills and haven't had a single issue.

Battery life: Seriously, 50,000 hours is incredible. No more scrambling to find a replacement at the worst time.

Simple controls: Just two buttons to adjust brightness. Easy to use even with gloves on.

Advantages:

Holds zero like a champ: I've sighted it in once, and it's stayed true ever since.

Clear dot: The red dot is crisp and easy to see in most lighting conditions.

Perfect for short-range shooting: Ideally suited for the strengths of the 300 BLK round.

Disadvantages:

Cost: This sight isn't cheap. Be prepared to shell out some cash.

No magnification: If you're looking for a magnified optic, this isn't for you.

Using the T2:

The T2 is a dream to use. It's fast, lightweight, and disappears behind the sight picture. The dot is clear and easy to pick up, even when I'm moving quickly. It gives me the confidence to know that I can make accurate shots on short-range targets, which is exactly what I want from my 300 BLK setup.

What Others Are Saying:

People online rave about the T2's durability and battery life. Some users with astigmatism mention preferring holographic sights, but for most, the T2's red dot is nice and crisp. Overall, there's a reason this sight is a favorite among professionals and hobbyists alike.

The Verdict:

If you're looking for a top-of-the-line red dot sight for your 300 BLK, the Aimpoint T2 is an excellent choice. It's a bit of an investment, but the build quality, battery life, and overall performance make it well worth the money. In my opinion, it's one of the best red dot sights on the market, and it definitely earns a permanent spot on my 300 BLK.

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Eotech EXPS3

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I strapped an EOTECH EXPS3 on my 300 BLK build a while back, and here's the rundown.

Specs:

Night vision compatible

Reticle options: 68 MOA ring with 1 MOA center dot, 65 MOA circle with 2 MOA dot (depends on model)

Battery life: 600 hours on AA lithium

Water resistant: 10 meters

Best Features:

Fast target acquisition: The holographic reticle makes picking up targets blazingly quick, especially at close quarters.

Both-eyes-open shooting: No more squinting down a peephole. This sight lets you maintain situational awareness while aiming.

Durability: EOTECHs are known for being tough. This one has withstood bumps and bangs at the range without issue.

Advantages for 300 BLK:

Multiple reticle options: Some models have a reticle calibrated for supersonic and subsonic rounds, which can be helpful with this versatile cartridge.

Quick transition between supers and subs: With the right reticle, you can switch between ammo types without needing to re-zero the sight entirely.

But It's Not Perfect:

Battery life: Compared to some red dot sights, the battery life isn't amazing. Pack spares.

Weight: It adds some heft to your rifle compared to a micro red dot.

Price: EOTECHs are on the pricier side.

Real World Use:

Out at the range, the EXPS3 shines for close-up shooting. With both eyes open, I can track moving targets and line up shots instinctively. However, at a distance, the thick reticle can obscure smaller targets.

Here's the thing: while the 300 BLK-specific reticle is a nice touch, ballistics calculators and a standard reticle can achieve a similar outcome.

What People Are Saying:

Some folks online rave about the EXPS3 for 300 BLK, praising its ease of use and the 300 BLK reticle. However, others point out that the reticle is just a marketing gimmick and that a standard reticle with proper holdovers works just fine.

The Verdict:

The EXPS3 is a solid sight, but for the price, you might be better off with a lighter red dot and a good ballistic calculator for your 300 BLK. If budget isn't a concern and you love the holographic experience, then the EXPS3 is definitely a contender. But if you're looking for the most versatile option for your 300 BLK, there might be a better fit out there.

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Sig Sauer Romeo5

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I strapped a Sig Sauer Romeo5 onto my 300 Blackout for the first time a while back, and let me tell you, it's been a great match. It's not the fanciest red dot out there, but for the price, it's definitely a contender, especially for a 300 BLK setup.

Specs and Features:

2 MOA red dot reticle - Nice balance between precision and quick acquisition at close quarters.

Motion-activated illumination - Saves battery life when not in use.

IPX4 waterproof - Can handle rain and the occasional splash.

Lightweight - Doesn't weigh down my build.

10 brightness settings - Plenty of options for various lighting conditions.

Best Features:

For me, the Romeo5 shines in three areas: affordability, durability, and simplicity. It punches above its weight class in terms of quality without breaking the bank. The motion activation is a great battery saver, and it's held up well at the range, even after a few bumps and scrapes. Plus, it's easy to use – no complicated menus or adjustments needed.

Downsides to Consider:

There are always a few compromises at this price point. The Romeo5's field of view isn't the biggest, and the battery life isn't quite as long as some higher-end models. Also, the reticle options are limited to the single red dot.

Real-World Use:

Out on the range, the Romeo5 has performed admirably. The 2 MOA dot allows for precise aiming at short to mid-range distances, perfect for the 300 Blackout's typical applications. The motion activation wakes the sight up quickly when I shoulder the rifle, and the various brightness settings make it usable in all kinds of light.

What Others Are Saying:

This red dot seems to be a popular choice among other shooters online. People on forums [discuss forums about Sig Sauer Romeo5] frequently praise its value and reliability. There are some mentions of the limited field of view and battery life, but overall, the sentiment is positive.

If you're looking for a no-frills red dot sight that won't break the bank and pairs well with your 300 Blackout, then the Sig Sauer Romeo5 is definitely worth considering. It's a solid option that delivers on the essentials.

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Vortex Crossfire

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I strapped a Vortex Crossfire on my 300 Blackout a while back, and for the price, I gotta say, it's been a solid performer. Let's break it down.

Specs and Features:

There are a few Crossfire variations, but mine's the 2-7x32. It offers decent magnification for close to mid-range shooting, which is the sweet spot for the 300 BLK.

The glass is good, not amazing, but it delivers a clear sight picture in most lighting conditions. At dusk and dawn, you might wish for a little more low-light capability, but that's where pricier optics come in.

The Crossfire is built tough. It's taken some bumps and knocks on my range trips without complaint. Vortex is also famous for their rock-solid warranty, so that's a plus.

What I Like:

The biggest win? Affordability. This scope won't break the bank, which is great for budget-minded shooters like myself.

It's lightweight, which is a bonus when you're packing your rifle around all day.

The controls are easy to use. Adjustments are crisp and hold zero well.

What I Don't Like:

As mentioned, low-light performance could be better. If you plan on hunting at dawn or dusk, you might want to consider a higher-end scope.

The magnification isn't ideal for super long-range shooting, but that's not what the 300 BLK is designed for anyway.

Overall:

If you're looking for a good balance of affordability and functionality for your 300 Blackout, the Vortex Crossfire is a great option. It's done well for me at the range and during some hog hunting trips.

What Others Are Saying:

Browsing online forums, I've seen other folks echo my experience. Many use the Crossfire II on their 300 BLKs for hunting and target shooting with success. Some reviewers mention the eye relief can be a little finicky, but nothing major.

If you're on the fence and looking for a solid budget optic for your 300 Blackout, the Vortex Crossfire is definitely worth considering.

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Trijicon MRO

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I strapped a Trijicon MRO on my 300 BLK a while back, and it's become a trusty companion. Here's the rundown from my perspective:

Specs:

Red dot sight

Aiming point: 2 MOA dot

Weight: 4.6 ounces

Battery life: 5 years (constant on)

Rugged and waterproof

Best Features:

Rock-solid construction: Trijicon is known for bombproof optics, and the MRO doesn't disappoint. It can take the bumps and bruises of running a 300 BLK.

Clear, crisp dot: The 2 MOA dot offers a good balance of precision for close quarters and fast target acquisition.

Battery life: 5 years on constant illumination is impressive. I haven't had to change the battery yet, and that peace of mind is priceless.

Advantages:

Lightweight: Every ounce counts, especially on a maneuverable carbine like the 300 BLK. The MRO keeps things nimble.

Simple and intuitive: Red dots are easy to use, and the MRO's clean design makes it clutter-free. Perfect for quick engagements.

Great for short to medium range: The 300 BLK excels in this zone, and the MRO keeps up, allowing for fast and accurate shooting.

Disadvantages:

Price: Trijicon optics come at a premium price tag. The MRO is no exception.

Limited reticle options: Just a single 2 MOA dot. If you prefer different reticles, you might look elsewhere.

No magnification: The MRO is a red dot, not a magnified optic. For longer-range shooting, you'll need a different scope.

My Experience:

The MRO has been a great fit for my 300 BLK. It's fast on target, easy to use, and built like a tank. It's perfect for close-quarters situations and excels at the ranges where the 300 BLK shines. While the price tag stings a bit, the quality and reliability make it a worthwhile investment.

What Others Are Saying:

Browsing online forums, I've seen some mixed reviews. Some users, like me, love the MRO's ruggedness and simplicity. However, others have mentioned a slight edge to the field of view on some competitor red dots, and a few wished for more reticle options. Overall, the positive reviews seem to outweigh the negatives.

Ultimately, the Trijicon MRO might not be for everyone, but for a reliable, no-frills red dot on a 300 BLK setup, it's a strong contender.

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Primary Arms SLX

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I was looking for a scope that could handle the versatility of the 300 BLK round, and the Primary Arms SLx definitely fit the bill. Here's the breakdown:

Specs:

Available in various configurations, including 1-6x and 3x magnification

ACSS reticles designed for ballistic drop compensation of 300 BLK with both supersonic and subsonic ammo

30mm main tube for increased strength and adjustment range

Lifetime warranty

Best Features:

The ACSS reticle is the real star. It has built-in holdovers for different ranges and bullet types, making it easy to take precise shots without needing to fiddle with ballistic calculators.

The glass clarity is excellent, especially considering the price point. I can see targets clearly at distance, even in low-light conditions.

It's built tough. I've taken this scope through rain, mud, and bumps, and it's held zero perfectly.

Advantages:

This scope is a great value. You get a lot of performance for your money.

It's incredibly versatile. Whether you're shooting close quarters or reaching out to longer distances, the SLx can handle it.

The ACSS reticle makes it a great option for hunters and shooters who use both supersonic and subsonic ammunition.

Disadvantages:

Some folks might find the 1-6x magnification a little limiting for longer-range shooting. If that's your primary use, you might want to consider a higher-powered optic.

The reticle illumination isn't the brightest on the market. It's still usable in daylight, but it might not be ideal for low-light situations where you need maximum brightness.

My Experience:

Overall, I'm really impressed with the Primary Arms SLx. It's a great optic for the price, and it's perfect for anyone who wants a versatile scope for their 300 BLK. It's helped me improve my accuracy at all ranges, and the ACSS reticle makes it a breeze to take long-distance shots with confidence.

What Others Are Saying:

Online reviews seem to echo my experience. People love the value and performance of the SLx, with the ACSS reticle being a constant highlight. A few reviewers wished for a bit more magnification or a brighter illumination option, but overall, the sentiment is positive.

If you're looking for a solid, dependable scope for your 300 Blackout, I highly recommend checking out the Primary Arms SLx. You won't be disappointed.

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Conclusion

The best red dot for 300 BLK emphasizes versatility. Look for a model with adjustable dot brightness for various lighting conditions, and ensure it's built to withstand the cartridge's recoil. Factor in the subsonic and supersonic capabilities of 300 BLK when choosing a red dot that complements your shooting style.

Top 6 Best Red Dot Sight For 300 BLK

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