Best Red Dot for Marlin 45-70

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Best Red Dot for Marlin 45-70

The Marlin 45-70 is a big-bore rifle that produces a significant amount of recoil. It’s primarily used for hunting big game. While lever-action rifles have traditionally be paired with magnified scopes, there has been a huge rise in popularity of red dot usage. There are several important factors to consider when choosing an optic for this type of rifle and we dug deep to identify the best red dots for the Marlin 45-70.

Must-haves in a Marlin 45-70 red dot


The single most important factor when choosing the best red dot for the Marlin 45-70 was durability. The 45-70 round packs a lot of punch, thus creating a lot of recoil. It is crucial that you choose a red dot that will hold up to the shock produced from this rifle and round. This factor alone practically eliminates the budget optic market.

Battery life

The last thing you want is for your optic battery to die while you’re out in the field. When hunting, it’s important to keep your red dot on at all times, allowing you to be ready to fire at a moment’s notice. Choosing a red dot with excellent battery life is key. Of course, it’s also important to always bring a spare battery with you just in case.


While the budget red dot will probably not be durable enough to handle the recoil from the Marlin 45-70, we do make it a point to select from a price range that will fit most budgets. It’s important to note that even the least expensive red dot on our Top 4 list should be durable enough for this specific application. 

4 Best Red Dots for the Marlin 45-70

1. Stryka S3 Series [Great red dot at a great price]

The Stryka S3 Series was made with durability in mind. This red dot is perfect for lever-action “Big Game” rifles, as well as AR’s and shotguns. It’s made to withstand significant recoil that you’ll experience from rounds like the 45-70. In addition, this optic is waterproof and fog proof, which are two very important factors to consider, especially for those out in the field.

Though Stryka doesn’t specifically state total expected battery life, the S3 offers an auto shut-off feature that will power the unit down after an hour of inactivity. This is an important feature that will prolong the overall length of battery life.

Considering the features and durability of this optic, we consider this one of the best red dots in its price range for the Marlin 45-70.

Styrka S3 Series 2.5MOA Red Dot Sight, Black-ST-73050-Red Dot Sight with Small Dot for Added...
  • 2.5 MOA dot
  • 6 illumination settings to control brightness in any lighting environment
  • Auto shut-off to preserve battery life
  • Durable 6061 T6 aluminum construction
  • Waterproof
  • High-mount/low-mount options
  • Parallax-free
  • Unlimited eye-relief
  • 2. Sig Sauer Romeo5 [Best value]

    For those looking for the best value red dot, we highly recommend the Romeo5, by Sig Sauer. The Romeo5 is one of the most popular red dots on the market, and for good reason. It has features found in some of the higher end optics and is about as durable as they come.

    This red dot is also extremely versatile, being used on many different platforms, from shotguns to ARs and AK-47s. We love the fact that this model includes a high-rise mount, which will give you plenty of co-witness options depending on the platform you’re mounting it on.

    If your goal is to find the best bang for your buck, then you owe it to yourself to consider the Sig Romeo5. We’ve used it on both low and high-recoil firearms for years and have never had an issue whatsoever.

    SIG SAUER ROMEO5 1X20mm Tactical Hunting Shooting Durable Waterproof Fogproof Illuminated 2 MOA Red...
  • 2 MOA dot
  • 10 illumination settings to control brightness in any lighting environment
  • MOTAC motion sensor powers on when it senses motion and powers down when at rest
  • 40,000+ hours of battery life
  • Durable construction
  • Waterproof and fogproof
  • High-mount/low-mount options
  • 3. Aimpoint Micro H2 [Money's no issue]

    Aimpoint is well-known as a top-of-the-line optic company. They make some of the best red dots on the market today. One thing that Aimpoint optics are known for in particular, is durability. These optics are meant for extreme environments. For hunters, this is extremely important when rain, dirt/mud, and humidity are all factors.

    The Aimpoint Micro H2 is no exception when it comes to durability. The quality aluminum housing can take the abuse of being out in the field. In addition to durability, the battery life on this optic is exceptional, offering up to 50,000 hours of battery life and 5 years of continuous use. That’s incredible! If you have a little extra to spend on your red dot, then this is definitely worth looking at. The Aimpoint Micro H2 is loaded with features and quality parts.

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    4. Bushnell Trophy TRS-25 [Rent's due tomorrow]

    The Bushnell Trophy TRS-25 is a red dot that we often recommend in the budget price range. It’s perfect for multiple platforms, including AR-15’s, shotguns, and more. Believe it or not, it also makes an excellent option for lever-action rifles. It holds up to the recoil of higher power rounds and the overall construction is surprisingly durable.

    While you may not get all of the features found in some higher-priced optics, you will get a good red dot at a steal of a price. With strong battery life and durable construction, we consider the Bushnell TRS-25 to be the best budget red dot for the Marlin 45-70.

    Bushnell Trophy TRS-25 Red Dot Sight Riflescope, 1x20mm, Black
  • 3 MOA dot
  • Up to 3,000-hour battery life
  • Waterproof
  • Fogproof
  • Shockproof
  • 11 brightness settings (lower-light and brighter-light situations)
  • Nitrogen-filled aluminum housing
  • Conclusion

    Whether you’re on a tight budget or have a little money to spend on a red dot, we’re confident that you’d be happy with any of these options. While the higher-end optics, like the Aimpoint Micro H2, might be the nicest of the group, you will get the durability you need in all four red dots. If you’re looking for a good middle-of-the-road option, the Stryka S3 or Sig Romeo5 are definitely worth looking at. Regardless of which optic you end up getting, we hope that this helps point you in the right direction when choosing the best red dot for the Marlin 45-70.

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