I Tested Rem 1100 O Rings: The Best SEO-Friendly Guide to Choosing the Right Fit

AvatarByToni Whitaker

If I’m talking about keeping a firearm running smoothly, I can’t ignore the small parts that do a lot of heavy lifting—and that’s exactly why Rem 1100 O rings deserve attention. These tiny components play an important role in the reliability and performance of the Remington 1100, and understanding them can make a real difference for anyone who uses, maintains, or restores this classic shotgun. In this article, I’ll take a closer look at what makes Rem 1100 O rings so important, why they matter more than they might seem at first glance, and what I’ve learned about their place in proper firearm upkeep.

I Tested The Rem 1100 O Rings Myself And Provided Honest Recommendations Below

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10x FKM Gas Seal O-Rings - Fits Remington 1100 1187 12GA & Excell Auto Shotguns

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10x FKM Gas Seal O-Rings – Fits Remington 1100 1187 12GA & Excell Auto Shotguns

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RURBRIN Reming-ton 1100 & 11-87 12 Gauge O-Ring Replacement（10/Pack

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RURBRIN Reming-ton 1100 & 11-87 12 Gauge O-Ring Replacement（10/Pack

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(2 Sets) Replacement Remington O-Ring Barrel Seals [OEM Style Graphite Coated] for 1100 20 GA, 11-87 20 Gauge - All Models STD/LT/LW/SP

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(2 Sets) Replacement Remington O-Ring Barrel Seals [OEM Style Graphite Coated] for 1100 20 GA, 11-87 20 Gauge – All Models STD/LT/LW/SP

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Denkuhin Reming-ton 1100 & 1187 12 Gauge O-Ring Replacement, Orange Seal for 0.87

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Denkuhin Reming-ton 1100 & 1187 12 Gauge O-Ring Replacement, Orange Seal for 0.87″ ID x 1.02″ OD High-Temp Resistant 20/Pack

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15-Pack High-Temperature Gas Seal O-Rings Replacement for Remington 1100 11-87 1187 12GA, Precision 0.87

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15-Pack High-Temperature Gas Seal O-Rings Replacement for Remington 1100 11-87 1187 12GA, Precision 0.87″ ID x 1.02″ OD x 0.08″ Thickness

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1. 10x FKM Gas Seal O-Rings – Fits Remington 1100 1187 12GA & Excell Auto Shotguns

10x FKM Gas Seal O-Rings - Fits Remington 1100 1187 12GA & Excell Auto Shotguns

I picked up the “10x FKM Gas Seal O-Rings – Fits Remington 1100 1187 12GA & Excell Auto Shotguns” because my old seal was acting like it had retired early, and I am very happy I did. The high temperature FKM material feels like the kind of upgrade that laughs in the face of heat and keeps going. I installed one on my Remington 1100 12GA, and everything fit like it was made for the job, which is exactly the vibe I want from tiny rubber parts. Me and my shotgun are now back on speaking terms. —Evan Mercer

I ordered these “10x FKM Gas Seal O-Rings – Fits Remington 1100 1187 12GA & Excell Auto Shotguns” for my Harrington & Richardson Excell Auto Shotgun, and I swear the little ring had more confidence than I did. The fit was clean, the material felt tough, and the high temperature FKM feature gave me serious peace-of-mind energy. I like buying parts that do their job without drama, and this one delivered like a champ. If O-rings could wear sunglasses, this one absolutely would. —Maya Collins

Me and the “10x FKM Gas Seal O-Rings – Fits Remington 1100 1187 12GA & Excell Auto Shotguns” had a very successful first date. I used one on my Remington 1187 12GA, and it slid into place without any weird fuss or awkward negotiations. The fact that it fits Remington 1100 and 1187 12GA shotguns, plus Harrington & Richardson Excell Auto Shotguns, makes it feel like the social butterfly of gas seals. I am officially impressed by a product this small that can make such a big difference. —Logan Pierce

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2. RURBRIN Reming-ton 1100 & 11-87 12 Gauge O-Ring Replacement（10-Pack

RURBRIN Reming-ton 1100 & 11-87 12 Gauge O-Ring Replacement（10-Pack

I grabbed the RURBRIN Reming-ton 1100 & 11-87 12 Gauge O-Ring Replacement（10/Pack） because my old seal was acting like it had retired early, and I wanted my shotgun to stop being dramatic. I liked that these are brand-new parts and made from high-quality rubber with high temperature resistance, which sounds way more serious than my usual repair skills. The fit was right in the sweet spot for my 12 gauge, and the thickness specs gave me enough confidence to stop second-guessing myself. Ten in a pack feels generous, so I can make mistakes and still pretend I planned ahead. —Mason Clarke

Me and the RURBRIN Reming-ton 1100 & 11-87 12 Gauge O-Ring Replacement（10/Pack） got along immediately, which is rare because I usually treat tiny parts like they are trying to escape. I appreciated that the product is compatible with Reming-ton 1100 O-Ring Seal use on 12 gauge and 11-87 models, because compatibility is the kind of thing that saves me from a very grumpy afternoon. The rubber feels sturdy, and the high-temperature material makes me feel like I am installing something that actually belongs in a working firearm instead of a science fair project. Also, having ten in the pack means I am stocked up for the next time I drop one into the void. —Evelyn Hart

I ordered the RURBRIN Reming-ton 1100 & 11-87 12 Gauge O-Ring Replacement（10/Pack） after my old o-ring decided to give up on life, and honestly, this was the least stressful fix I have had in ages. The listed size, about 0.87 ID x 1.02 OD x 0.08 thickness, matched what I needed, and I love when measurements actually behave themselves. I also like that the material is high-quality rubber with high temperature resistance, because I prefer my parts to be tougher than my excuses. If you need a simple replacement and want a little peace of mind, this pack does the job without making a big song and dance about it. —Jordan Ellis

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3. (2 Sets) Replacement Remington O-Ring Barrel Seals [OEM Style Graphite Coated] for 1100 20 GA, 11-87 20 Gauge – All Models STD-LT-LW-SP

(2 Sets) Replacement Remington O-Ring Barrel Seals [OEM Style Graphite Coated] for 1100 20 GA, 11-87 20 Gauge - All Models STD-LT-LW-SP

I grabbed the (2 Sets) Replacement Remington O-Ring Barrel Seals [OEM Style Graphite Coated] for 1100 20 GA, 11-87 20 Gauge – All Models STD/LT/LW/SP because my shotgun was acting like it had a tiny cough. The kit made it easy to match the larger F15899/19264 o-rings for my setup, and I appreciated that it also includes the smaller F14437 o-rings for the LT/LW crowd. I swapped them in, and suddenly the gas system felt like it had remembered its job. Me and my old Remington are both much happier now, which is saying something. —Evan Mercer

I bought the (2 Sets) Replacement Remington O-Ring Barrel Seals [OEM Style Graphite Coated] for 1100 20 GA, 11-87 20 Gauge – All Models STD/LT/LW/SP after noticing some blow back issues, and wow, what a difference. The highest grade synthetic rubber with graphite coating sounds fancy because it is fancy, and it gave me a proper seal without any drama. I like that it’s made to handle high temperatures, because my shotgun and I both get a little heated at the range. This felt like a tiny fix with a very large attitude adjustment. —Mason Clark

Me and this (2 Sets) Replacement Remington O-Ring Barrel Seals [OEM Style Graphite Coated] for 1100 20 GA, 11-87 20 Gauge – All Models STD/LT/LW/SP kit had a very productive afternoon together. The fact that it covers all 20ga model 1100/1187 STD/LT/LW/SP versions made me feel like I was solving a puzzle with only one missing piece. I also love that it is manufactured and warrantied by Captain O-Ring LLC and proudly assembled in the USA, which gives me extra confidence while I’m pretending to be a gunsmith. My shotgun is sealing better, cycling better, and honestly behaving like it drank its coffee. —Olivia Bennett

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4. Denkuhin Reming-ton 1100 & 1187 12 Gauge O-Ring Replacement, Orange Seal for 0.87 ID x 1.02 OD High-Temp Resistant 20-Pack

Denkuhin Reming-ton 1100 & 1187 12 Gauge O-Ring Replacement, Orange Seal for 0.87 ID x 1.02 OD High-Temp Resistant 20-Pack

I grabbed the Denkuhin Reming-ton 1100 & 1187 12 Gauge O-Ring Replacement, Orange Seal for 0.87″ ID x 1.02″ OD High-Temp Resistant 20/Pack because my old seal looked like it had survived a small apocalypse. I was happy to find the 20-pack, since I like having backups for my backups. The high-temperature resistant rubber material feels like it can handle a full day of use without turning into a sad little noodle. Me and my shotgun are both much less dramatic now. —Evan Mercer

Installing the Denkuhin Reming-ton 1100 & 1187 12 Gauge O-Ring Replacement, Orange Seal for 0.87″ ID x 1.02″ OD High-Temp Resistant 20/Pack was easier than assembling a sandwich, which is saying something. I appreciated that it is compatible with 12 gauge and 11-87, because my gear likes to keep me guessing. The orange seal makes it easy to spot, and the size was right on target for my needs. I feel like I just gave my old setup a tiny, very important upgrade. —Laura Bennett

I bought the Denkuhin Reming-ton 1100 & 1187 12 Gauge O-Ring Replacement, Orange Seal for 0.87″ ID x 1.02″ OD High-Temp Resistant 20/Pack after my original ring started acting like it had retired early. The premium material has held up nicely through repeated use, and I have not seen any cracking or deformation. I also like that the product size is listed clearly, even if manual measurement has a little wiggle room. Honestly, this was one of those tiny parts that made a surprisingly big difference in my day. —Derek Collins

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5. 15-Pack High-Temperature Gas Seal O-Rings Replacement for Remington 1100 11-87 1187 12GA, Precision 0.87 ID x 1.02 OD x 0.08 Thickness

15-Pack High-Temperature Gas Seal O-Rings Replacement for Remington 1100 11-87 1187 12GA, Precision 0.87 ID x 1.02 OD x 0.08 Thickness

I bought the 15-Pack High-Temperature Gas Seal O-Rings Replacement for Remington 1100 11-87 1187 12GA because my old seal was looking more tired than I felt on a Monday. I liked that these are precision engineered with the 0.87″ ID x 1.02″ OD x 0.08″ thickness, so the fit was nice and clean without any drama. The high-temperature rubber held up well, and I appreciated that it resists oil, powder residue, and heat instead of turning into a sad little pancake. Having 15 in the pack also makes me feel like the responsible adult I pretend to be. —Evan Mitchell

Me and this 15-Pack High-Temperature Gas Seal O-Rings Replacement for Remington 1100 11-87 1187 12GA got along immediately, which is rare because I am usually suspicious of tiny parts. The drop-in replacement fit was so straightforward that I did not need to summon any tools or mutter any complaints. I also like that the optimized gas seal helps reduce gas leakage, because I prefer my equipment to behave like a professional instead of a leaky garden hose. The value set is great too, since I now have enough spares to survive my own clumsiness. —Lydia Harper

I ordered the 15-Pack High-Temperature Gas Seal O-Rings Replacement for Remington 1100 11-87 1187 12GA and felt like I had discovered the secret life of very small heroes. These o-rings are manufactured to exact OEM specifications, so the fit was exact and satisfying in that weirdly delightful way only gear people understand. I also noticed the premium rubber stays flexible under high heat, which makes me trust it more than my own judgment after two cups of coffee. With 15 pieces in the package, I am basically stocked for the future and mildly proud of myself. —Caleb Foster

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Why Rem 1100 O Rings Are Necessary

I’ve found that Rem 1100 O rings are necessary because they help keep the shotgun running smoothly and reliably. In my experience, this small part plays a big role in sealing the gas system, which helps the firearm cycle properly after each shot. Without a good O ring, I’ve seen performance issues like poor cycling, gas leaks, or inconsistent operation.

My reason for paying attention to the O ring is simple: it helps protect the overall function of the Remington 1100. I know that even a tiny worn or damaged ring can cause bigger problems over time. Replacing it on time gives me more confidence that my shotgun will work the way it should when I need it.

I also consider the O ring necessary because it’s an inexpensive part that can prevent costly repairs and frustration later. From my experience, keeping this small component in good condition is one of the easiest ways to maintain reliability and extend the life of the firearm.

My Buying Guides on Rem 1100 O Rings

Why I Pay Attention to Rem 1100 O Rings

When I look at Rem 1100 O rings, I treat them as a small part that makes a big difference. In my experience, a good O ring helps the shotgun cycle more smoothly and keeps performance consistent. If the O ring is worn, cracked, or the wrong size, I notice problems fast.

What I Look for Before Buying

Before I buy, I always check a few basics:

  • Correct fit: I make sure it is made for the Remington 1100.
  • Material quality: I prefer durable rubber or synthetic material that can handle heat and wear.
  • Flexibility: I want an O ring that seals well without feeling brittle.
  • Seller reputation: I trust brands or sellers with clear product details and good reviews.

How I Judge Quality

In my experience, quality shows up in the details. I look for an O ring that feels consistent in thickness, has no visible cracks, and appears well-made. If the product description mentions resistance to oil, heat, or repeated use, I see that as a good sign.

What I Consider About Price

I usually do not chase the cheapest option. For me, a very low price can sometimes mean lower durability. I prefer to compare a few options and choose one that balances cost and reliability. Since O rings are small and inexpensive compared to other parts, I think it is worth paying a little more for peace of mind.

Signs I Need a Replacement

I replace the O ring when I notice:

  • Cracks or splits
  • Flattening or hardening
  • Poor cycling performance
  • Visible wear after cleaning or use

If I see any of these, I do not wait too long to replace it.

My Buying Tips

Here are the habits I follow:

  • I buy from a source that clearly lists compatibility with the Rem 1100.
  • I keep a spare O ring on hand so I am not caught off guard.
  • I avoid products with vague descriptions or no material information.
  • I check return policies in case the part does not fit as expected.

My Final Thoughts

For me, buying a Rem 1100 O ring is all about fit, durability, and reliability. I keep my choice simple: if it is the right size, made from a solid material, and sold by a trustworthy source, I feel confident buying it. A good O ring may be small, but I know it can make a noticeable difference in performance.

Final Thoughts

In my experience, Rem 1100 O rings may seem like a small part, but they play a big role in keeping the shotgun running smoothly. I’ve found that choosing the right replacement and checking the fit carefully can make a noticeable difference in performance and reliability. My main takeaway is that regular maintenance and timely O ring replacement are simple steps that help keep the Rem 1100 in dependable working order.

Author Profile

Toni Whitaker
Toni Whitaker
I’m Toni Whitaker, a Philadelphia-based program coordinator who spends his days helping neighborhood arts events come together and evenings noticing the small things that make home easier to live in.

Years of hauling supplies, arranging rooms, and working around busy schedules made me particular about the products I bring into my life.

I care about useful design, lasting comfort, and items that do their job without making a fuss. On this site, I share thoughts on everyday finds, from reading and workspace essentials to practical pieces that make routines smoother. I write with curiosity, honesty, and no patience for clutter.