Remington 870 Express Red Dot sight?

[Tjamesd]

I have a Remington 870 Express used for slug deer hunting. Any recommendations on a Red Dot sight to use with the 870 Express?
Also, any reliable saddle mounts to use as well?

Appreciate any input.

[Losoutypery]

For a red dot, look at the Vortex Venom or the Burris Fastfire 3.
For a saddle mount, the TacStar or Mesa Tactical options are solid and hold zero well.

[Thely1946]

I have a Remington 870 Express used for slug deer hunting. Any recommendations on a Red Dot sight to use with the 870 Express?
Also, any reliable saddle mounts to use as well?

Appreciate any input.

I’ve used the Remington 870 Express for similar purposes, and pairing it with a Burris FastFire or Holosun red dot works great—solid clarity and holds zero well. For saddle mounts, consider the TacStar or Aimtech—they’re both sturdy and reliable.

[JJMarsh]

For deer hunting with the 870 Express, the Burris Fullfield II 4.5-14x42 https://gritroutdoors.com/burris-fullfield-ii-4-5-14x42mm-riflescope-200183 is an excellent choice — especially if you're shooting at 75+ yards. Its Ballistic Plex reticle is great for bullet drop compensation, and the sealed design handles rain without issue.

But if you’re looking specifically for a red dot (for closer ranges or fast shots), my Holosun 507C has held zero through 200+ rounds of magnum slugs. For mounting, I recommend the Mesa Tactical Urbino mount—it’s more rigid than the TacStar and aligns well with the barrel.

[emmascott63]

I also run an 870 Express for slug hunting. For red dots, I’ve had great luck with the Holosun 510C—fast target acquisition and durable. For a saddle mount, Mesa Tactical has been rock solid for me, no shifting even after heavy recoil.

[FrankGibson]

Hi Tjamesd,

Good question. For a Remington 870 Express used in slug hunting, here are a few red dot sights and mounting setup ideas:

Red Dot Suggestions:

Aimpoint PRO – Very rugged, reliable, and great battery life.

Trijicon MRO – Wide field of view and built for tough use.

Holosun HS503CU – More budget-friendly, solar-assisted plus battery backup, and pretty durable.

Mounting Options:

Saddle Mounts:

Mesa Tactical 870 Side-Saddle Rail – Provides a solid rail for mounting optics.

Volquartsen Picatinny Side Rail – Lightweight and strong.

Mesa Tactical Scout Sidewinder Mount – For a more elevated mount if you want a more comfortable cheek weld.

Make sure when choosing mounts that they are compatible with both your 870 Express model and the red dot you pick. Also, zero your sight at a reasonable slug hunting distance to make it practical for your typical shots.

Good luck, and happy hunting!