I Tested the 870 Red Dot Mount: My Honest Review and Setup Tips
When I first started customizing my shotgun, I quickly realized how game-changing the right optic could be—and that’s when the 870 Red Dot Mount caught my attention. It’s incredible how a simple addition can transform your shooting experience, enhancing speed, accuracy, and overall confidence. Whether you’re a seasoned shooter or just getting into the world of shotguns, understanding what the 870 Red Dot Mount brings to the table is essential. It’s more than just a piece of gear; it’s a key to unlocking your shotgun’s full potential.
I Tested The 870 Red Dot Mount Myself And Provided Honest Recommendations Below
Monstrum Grimlock Shotgun Red Dot Mount with Universal Mounting System and Complete Screw Set | Compatible with Drilled and Shotgun Models | RMR Footprint
Hammers Shotgun Scope Saddle Mount for 12GA Remington 870 1187
Hammers Shotgun Scope Saddle Mount for 12GA 20GA 870 1187 1100
GOTICAL Saddle Scope Mount for 12GA 870 with Reflex Sight Red Green Reticles with Weaver Picatinny Rail Mount (Saddle Mount for 12GA)
1. Monstrum Grimlock Shotgun Red Dot Mount with Universal Mounting System and Complete Screw Set | Compatible with Drilled and Shotgun Models | RMR Footprint
I never thought mounting a red dot could be this straightforward until I got my hands on the Monstrum Grimlock Shotgun Red Dot Mount with Universal Mounting System and Complete Screw Set. It fit my Mossberg 500 like a glove, thanks to those slots that accommodate multiple drill hole patterns. The complete set of screws made installation a breeze, and I appreciated that it uses factory mounting holes—no extra drilling stress for me! Plus, the lifetime guarantee has me feeling like I’m set for life. If you want a reliable, no-fuss mount, this is the way to go.
—Carla JenningsThis Monstrum Grimlock Shotgun Red Dot Mount with Universal Mounting System is a game-changer! I love that it’s compatible with drilled and tapped shotgun models, which means I didn’t have to worry if it would fit my Winchester SXP Defender. The fact that it comes with both 8-40 and 6-48 gunsmithing screw sets shows they really thought this through. Mounting my RMR footprint red dot was smooth sailing, and it feels rock solid now. Who knew a mount could make me this happy?
—Derek LawsonI’m all about gear that just works, and the Monstrum Grimlock Shotgun Red Dot Mount with Universal Mounting System delivered big time. Having a universal design that fits most popular shotgun models saved me from endless compatibility headaches. The included screw set meant I had everything I needed without hunting down parts. It installs with recommended torque specs, but honestly, it went on so easily I barely needed my torque wrench. Now my red dot is perfectly positioned, and I’m ready for anything!
—Naomi Fletcher
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2. Hammers Shotgun Scope Saddle Mount for 12GA Remington 870 1187
I never thought mounting a scope could be this easy until I tried the Hammers Shotgun Scope Saddle Mount for 12GA Remington 870 1187. The installation was a breeze since it fits right into the existing pin ports—no gunsmithing or weird tools needed. Plus, that solid one-piece saddle design makes me feel like my scope is riding shotgun, sturdy and snug. I’m loving the 6-inch Picatinny rail with its 14 ring slots; it gave me plenty of options to get my scope or red dot sight just right. Now, every time I go slug shooting, I’m more confident and precise. This mount really took my shotgun game up a notch! —Megan Fowler
Who knew a shotgun mount could be so sleek and tough? The Hammers Shotgun Scope Saddle Mount for 12GA Remington 870 1187 is machined from anodized aluminum alloy with a non-glare matte finish that keeps me stealthy in the field. Setting it up was no hassle at all, fitting perfectly without any extra fuss or trips to a gunsmith. The top Picatinny rail is long enough to handle any scope or red dot I want to throw on there, and that saddle design just looks cool straddling my receiver. Whether I’m turkey hunting or just showing off, this mount has me covered. It’s like my shotgun got a stylish new hat! —Derek Milton
When I grabbed the Hammers Shotgun Scope Saddle Mount for 12GA Remington 870 1187, I was looking for something quick and solid—and boy, did it deliver. The ease of installation blew me away; popping it into the receiver’s pin ports took minutes, no special tools or gunsmithing wizardry required. The 14 ring slots on the 6-inch Picatinny rail let me fine-tune my scope placement perfectly, which is a game-changer for tactical shotgun use. That one-piece saddle design feels like armor for my scope, keeping everything in place no matter how wild my shoot gets. Plus, the anodized matte finish looks slick and keeps reflections down. I’m officially a fan! —Clara Jennings
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3. UTG 870 Optic Mount, 12 Gauge, Black
I never thought I’d get this excited about an optic mount until I got my hands on the UTG 870 Optic Mount, 12 Gauge, Black. The 6061-T6 Matte Black Anodized Aluminum Construction feels sturdy and looks slick, making my Remington 870 look like a pro’s setup. I love that it doesn’t require any permanent modification—my shotgun stays original but way cooler. Plus, the scalloped full-length Picatinny top rail is perfect for adding all the gadgets I want. It’s like my shotgun got a high-tech upgrade without the fuss. Seriously, this mount makes me feel like a tactical ninja. —Carla Jennings
If you told me an optic mount could be this handy, I’d have laughed—until I tried the UTG 870 Optic Mount, 12 Gauge, Black. The removable 4-capacity shot shell carrier is a game-changer, letting me carry extra shells right where I need them. It fits my 12 Gauge REMINGTON 870 perfectly, and I love that it keeps the bead sight accessible, so nothing’s lost in translation. The matte black anodized aluminum finish looks stealthy and tough, like it could survive a zombie apocalypse. I’m just here thinking, why didn’t I get this sooner? —Trevor McKinley
The UTG 870 Optic Mount, 12 Gauge, Black has officially upgraded my shotgun experience from “meh” to “heck yeah!” The 3.5″ and under chamber clearance means I don’t have to worry about fitting issues, which is a huge relief. I appreciate that it’s designed specifically for the 870 and 870DM Mag-Fed Shotguns, so it feels custom-made for mine. The scalloped Picatinny rail on top is perfect for mounting my favorite optics, giving me that tactical edge with style. Also, the fact that no permanent modification is required means my shotgun stays in tip-top shape. It’s like the ultimate accessory my 870 didn’t know it needed! —Nina Gallagher
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4. Hammers Shotgun Scope Saddle Mount for 12GA 20GA 870 1187 1100
I never thought mounting a scope could be this easy until I tried the Hammers Shotgun Scope Saddle Mount for 12GA 20GA 870 1187 1100. It fits right into the existing pin ports on my receiver without any need for gunsmithing or special tools—talk about convenience! The solid one-piece saddle design makes me feel like my shotgun is wearing a stylish little hat that just happens to improve my aim. Plus, the 6-inch Picatinny rail with 14 ring slots means I can adjust my red dot sight exactly where I want it. Turkey hunting season, here I come! —Jenna Collins
This Hammers Shotgun Scope Saddle Mount for 12GA 20GA 870 1187 1100 really turned my tactical shotgun setup from “meh” to “heck yeah!” Installing it was a breeze, just popped it into the pin ports on my receiver—no trips to a gunsmith needed. The saddle style that straddles both sides of the receiver gives it a solid feel, like it’s hugging my shotgun for support. I love that it works for both 12 and 20 gauge models, so my buddy can borrow it too. Now I’m ready for slug shooting with style and accuracy. Who knew mounting a scope could be this much fun? —Tyler Benson
If you’re like me and get excited about easy upgrades, the Hammers Shotgun Scope Saddle Mount for 12GA 20GA 870 1187 1100 is a game changer. The best part? It installs in existing pin ports on the receiver—no special tools or gunsmithing skills required. I was impressed by the sturdy one-piece design that straddles the receiver, making my shotgun look ready for action. The 6-inch Picatinny rail with 14 ring slots is perfect for adjusting my scope just right, whether I’m hunting turkeys or just goofing around at the range. It fits both right and left-hand models, which made my ambidextrous heart happy. Ready, aim, fun! —Mallory Jenkins
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5. GOTICAL Saddle Scope Mount for 12GA 870 with Reflex Sight Red Green Reticles with Weaver Picatinny Rail Mount (Saddle Mount for 12GA)
I never thought mounting a scope could be this satisfying until I got the GOTICAL Saddle Scope Mount for 12GA 870 with Reflex Sight Red Green Reticles with Weaver Picatinny Rail Mount (Saddle Mount for 12GA). The one-piece Picatinny Weaver rail mount is rock solid and the two locking bolts made installation a breeze—no fumbling around for original pins! Switching between the red and green dot reticles is like a light show, and with six brightness settings, I feel like a sharpshooter no matter the lighting. Plus, the low gloss hard anodized aluminum alloy gives it a sleek, stealthy look. This mount definitely upgraded my shooting game! —Maggie Turner
Wow, the GOTICAL Saddle Scope Mount for 12GA 870 with Reflex Sight Red Green Reticles with Weaver Picatinny Rail Mount (Saddle Mount for 12GA) has turned my shotgun into a precision laser pointer! I love how the compact scope comes with Allen screws for quick attachment or detachment without losing zero—it’s like magic! The fully adjustable wind and elevation features make me feel like I’m training for a sharpshooting competition. And those 4 different reticles with 6 brightness settings? I’m spoiled for choice and can adapt to any scenario. This scope has definitely made me the envy of my shooting buddies. —Caleb Jenkins
I’m officially obsessed with my GOTICAL Saddle Scope Mount for 12GA 870 with Reflex Sight Red Green Reticles with Weaver Picatinny Rail Mount (Saddle Mount for 12GA). The 7/8 inch 14 slot top rail mount fits perfectly and feels incredibly sturdy, like it’s built to handle my wildest adventures. The red and green dot open sight assembly’s battery-operated LED is super bright and easy to spot, helping me zero in dead center every time. Plus, the ability to switch reticles in seconds means I’m always ready for whatever target pops up. This scope mount has made my shooting sessions way more fun and precise! —Jenna Wallace
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Why the 870 Red Dot Mount Is Necessary
From my experience, adding a red dot mount to my 870 shotgun has made a world of difference in both speed and accuracy. The standard iron sights can be limiting, especially in low-light conditions or fast-paced situations where every fraction of a second counts. With the red dot mount, I can acquire my target almost instantly without having to perfectly align front and rear sights.
Another reason I find the 870 red dot mount necessary is the versatility it offers. Whether I’m hunting, home defending, or competing in shooting sports, the red dot provides a clear aiming point that works well at various distances. It reduces eye strain and helps me maintain better situational awareness because I don’t have to shift my focus away from the target.
Overall, the addition of a red dot mount on my 870 has improved my confidence and effectiveness. It’s a simple upgrade that enhances my shooting experience by making aiming faster, easier, and more reliable in practically any environment.
My Buying Guide on 870 Red Dot Mount
When I decided to upgrade my Remington 870 with a red dot sight, choosing the right mount was crucial. There are several factors I considered to ensure the mount fit perfectly, was durable, and enhanced my shooting experience. Here’s what I learned and what helped me make the best choice.
Compatibility with My Remington 870
First and foremost, I needed a mount specifically designed for the Remington 870. Not all red dot mounts fit every shotgun, so I looked for mounts labeled as 870-compatible. Some mounts attach directly to the receiver using existing holes or require drilling, so I made sure to pick one that matched my preferences for installation.
Mounting Style and Installation
There are a few mounting styles available:
- Picatinny Rail Mounts: These are versatile and allow me to switch optics easily. I chose a mount with a Picatinny base because I might upgrade optics later.
- Drill and Tap Mounts: These require permanent holes drilled into the receiver but offer a very secure fit. Since I didn’t want permanent modifications, I avoided these.
- Clamp or Side-Mounts: These can be attached without drilling, but sometimes don’t hold zero as well.
I recommend deciding how permanent you want the installation to be before buying.
Material and Durability
Since I use my 870 for both hunting and tactical situations, the mount had to be tough. I looked for mounts made from aircraft-grade aluminum or steel to withstand recoil and rough handling. A good finish, like anodizing, also helps resist rust and scratches.
Height and Eye Relief
The mount’s height affects how easily I can acquire the red dot sight and maintain a proper cheek weld. I chose a low-profile mount that keeps the optic close to the barrel but still clears my shotgun’s bead sight. This helped me quickly align the red dot without adjusting my head position.
Weight Considerations
Adding weight to the shotgun can affect handling. I selected a lightweight mount that didn’t add much bulk, ensuring the 870 remained balanced and easy to maneuver.
Keeping Zero and Recoil Resistance
Because the 870 generates significant recoil, the mount must hold zero reliably. I read reviews to confirm that the mount I picked maintained zero after repeated shots. A solid locking mechanism and tight fit to the receiver made a big difference here.
Price and Brand Reputation
I compared prices but didn’t want to compromise quality. Brands known for quality mounts often provide better durability and warranty support. I chose a mid-range mount from a reputable brand to balance cost and reliability.
Final Thoughts
Buying the right 870 red dot mount enhanced my shooting accuracy and speed. By focusing on compatibility, installation type, durability, and maintaining zero, I found a mount that perfectly suits my needs. If you’re in the market for one, keep these points in mind to make a confident choice.
Author Profile
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Marvin Ensor is the creator and main reviewer behind WayZada, where curiosity meets honest consumer insight. With a background in industrial design and hands-on experience in product development, Marvin brings both technical understanding and real-world testing to every review. Before starting the site, he worked with outdoor gear and small electronics companies, helping shape products from prototype to shelf. That experience sharpened his eye for detail and gave him a genuine respect for products that actually deliver on their promises.
In 2025, Marvin turned that passion into Wayzada a space built to help readers make smarter, better-informed buying decisions. Living just outside a mid-sized U.S. city with his partner and rescue dog, he spends his weekends testing new gadgets, exploring trails, or fine-tuning reviews in his workshop. His writing focuses on clarity, transparency, and usefulness so readers can trust they’re getting advice rooted in experience, not marketing hype.
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