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Remington 1100

Updated on March 5, 2015

Remington 1100

The Remington Model 1100 has been around for more than 40 years and is a very popular model for a variety of shooting.

With models for trap shooting, competition shooting, self defense and more, the Remington 1100 is an easily usable shotgun.

Before you leave though, check out our lens as we have put together some of the best products and resources for you to be able to learn more about the 1100, how to troubleshoot, tear down and repair it. We also share some of our most popular items that we use everyday on our 1100's. Share with us some of your favorite items, stories, comments or questions too, we would appreciate the feedback!

You can also find Remington 1100 parts easily, if you need them from various sources, including eBay, Amazon.com and other sporting related websites.

Remington 1100 & 11-87 Shotgun Disassembly & Reassembly Gun-guide (Disassembly & Reassembly Guide)
Remington 1100 & 11-87 Shotgun Disassembly & Reassembly Gun-guide (Disassembly & Reassembly Guide)

This is a MUST for anyone with an 1100 that is wanting to do their own repairs, deep cleaning or to just have for those "just in case" times.

 

Remington 1100 Common Repairs

Remington 1100 Teardown

As always, before you begin disassembly, make sure you're dealing with an empty firearm by pulling the bolt handle back until it locks in the open position. Stick a finger into the magazine tube to ensure there's nothing in there that could cause a loud noise. Because we'll be dealing with springs, make sure you have a pair of safety glasses in position on your face.

Takedown for the 1100 shotgun is quite straightforward and very simple. Unscrew the forend cap and slide the forearm off the magazine tube. The barrel will then come out of the receiver. Peer into the back end of the ring that hangs from the bottom of the barrel and fits over the magazine tube. You'll see a small hole or two drilled through and into the interior of the barrel. This hole(s) bleeds gas from the fired shell into the gas system to operate the action. It's rare for this hole to get plugged up completely, as Remington designed the gas hole to self-clean as the gun is fired. Carbon can build up in this area, nonetheless, so a cleaning with a "Ream-n-Klean" bristle-type pipe cleaner dipped in solvent should remove any carbon buildup that may be present.

If more drastic measures are called for, refer to the table in Figure 1, which will give you the size of the gas hole you're dealing with. Some folks will recommend using a number drill of the appropriate size to clean any stubborn carbon away from the walls of this hole. Four- and six-fluted reamers are also available in all number sizes. I prefer to use these when removing stubborn carbon, because the reamers have more guiding edges that will help to ensure that the reamer goes in straight as it's twirled between the fingers.

Look into the chamber to see if there is any rust or pitting in this area that could grab a spent shell head long enough to retard ejection. If rust is present, it can be removed with #0000 steel wool wrapped around a wood dowel spun in a hand drill. There are two rings on the outside of the magazine tube, the piston and piston seal. These are retained toward the front of the receiver by an O-ring (barrel seal). These rings will now slide off the front of the mag tube. Inspect the O-ring for cracks or brittleness and replace it if it's suspect. The piston and piston seal will last a long time, but if they show any indications of rust or pitting on the opposing angled faces, replacement is in order. When reassembling these two parts over the magazine tube, make sure that the slits in each part are 180 degrees opposed to each other. If gas is allowed to blow through the slits when lined up, some of the gas needed to operate the shotgun correctly could be lost.

Receiver Disassembly

Push out the two pins that retain the trigger group in the receiver and remove the group. The bolt handle is removed by means of a strong tug on the bolt handle pulling it out of the bolt. Reach into the right front of the receiver through the cutout for the trigger group and depress the front portion of the feed latch. (Pushing it toward the inside receiver face.) The action bars and action bar sleeve will now slide out the front of the receiver taking the bolt with them.

Inspect the extractor for any visible signs of chipping on the front (hook) end of the extractor. If it's chipped, the extractor should be replaced. Push the extractor outward to get a feeling for any dragging of the extractor plunger. If the movement feels gritty, the extractor will need to be removed along with the plunger and spring. A thorough cleaning of the parts and the area where they reside should smooth things out, and a few drops of Break-Free CLP on the parts before reassembly will keep them lubricated.

The link rides along rails machined in the receiver, and as the bolt travels rearward, it pushes the link backward against tension from the action spring. Use a pair of needle-nose pliers to pinch the rear legs of the link together and then push the link forward. Turn the link either right or left and it can then be removed from the receiver. Carefully feel along the rails that the link rides on for any burrs or sharp edges that might be present. A cotton swab rubbed along these rails will find any sharp edges by leaving cotton fibers clinging to the burrs. Burrs can be removed by carefully sanding them smooth with 600-grit emery paper backed by a small hardwood block. Don't overdo the sanding--just remove the burrs until the area feels smooth. The link is a stamped part and quite often there are burrs along the edges of the link where it rides along the rails. These burrs can be removed with a fine-cut needle file and then polished with a felt bob or 600-grit emery paper on the face of the link that rides on the receiver rails.

Action-Spring Removal

To get at the action spring, the follower, and the plug, the stock will need to be removed. Remove the recoil pad or butt-plate which will expose the action spring tube nut. The wrench I use for this part of the takedown was made over 40 years ago and does the job without risk of damaging the nut slot or stock. There are wrenches available commercially to do this job, and I highly recommend them over a screwdriver-blade-type tool. These wrenches fit over the end of the nut and guide a correctly fitting blade into the slot, providing plenty of strength to remove the nut and reinstall it.

Once the action-spring tube nut is removed, the buttstock can be removed from the tube. Push out the pin going through the action-spring tube and the action-spring plug while holding a cupped palm over the rear end of the tube. Catch the spring as it comes backward and relax the tension on the spring until you can pull it out of the tube. The inside of the action tube is cleaned with a .410-gauge bore brush wrapped with #0000 steel wool dipped in solvent.

The action-spring follower has a tapered hole in the front end and a ring machined on the inside of the tapered hole that retains the rear end of the link. The followers (part #15171) that I have in stock are made of steel, but apparently Remington made these out of aluminum at some point in time. The one shown in the photo here was made from aluminum and removed from a Model 1100 in 12-gauge Magnum. For reasons unknown, the coned end of this aluminum follower flared outward and was dragging on the inside walls of the action-spring tube with enough pressure to impede the ejection process. My suggestion is to replace any aluminum action-spring follower you run across with the steel type to avoid this possible problem.

Measure the length of the action spring. These springs will develop a "set" over time from the compressing action endured during the firing cycle. A new action spring measures around 15-1/4 inches when new, so if the spring you removed measures, say 14 inches or less, it's developed too much set and should be replaced with a new spring.

Barrel Guide

On the left, upper inside face of the receiver is a little round button. This button is the barrel guide that clocks the barrel for the correct position in the receiver. The barrel guide is spot welded in place during manufacturing of the receiver and is not available as a replacement part. Looking at the example depicted in the photo here, you can see that the barrel guide has broken off and the owner is unaware of how and when this happened. Without the barrel guide in place, the barrel can become rotated such that the extractor cutout in the barrel will bind the extractor in the bolt and cause enough pressure to prevent complete cycling of the action.

The owner and I discussed a couple of approaches to the repair. Should the firearm be sent back to the factory for what might be a costly repair? Or could he put up with a repair that might have a minor effect on the cosmetic appearance of the shotgun but would be much less costly? The second option was the owner's choice.

The receiver was set up in my milling-machine vise with the shallow hole (where the barrel-alignment button was) centered under the drill chuck. A #36 (.1065 inch) drill was used to drill a hole through the receiver and then the hole was reamed with a #33 (.113 inch) reamer to produce a smooth, round hole. A new barrel-alignment guide was then turned in the lathe with a head diameter of .162 inch and a length of .060 inch. The shank of the alignment button was then turned to a diameter of .114 inch, which is .001-inch larger than the reamed hole with an edge chamfer on the end that would be pressed into the .113-inch reamed hole. The .162-inch-diameter end was also chamfered to break the sharp edge.

A dry fit of the button was then done to make sure that it slipped into the guide slot with enough clearance on the diameter and front end so that it would slide freely in the barrel slot and be just below the outside diameter of the barrel in this area. The shank end of the replacement barrel guide was then coated with Loctite #277 (permanent) and aligned over the hole reamed in the receiver verifying that it will go in straight. The alignment button was then pressed into place with a small arbor press. The pressing-in process can also be done in a drill press with a steel spud in the drill chuck. Once the new alignment button was in place, it was cold-blued to match the internal receiver finish.

The barrel-alignment button does just one thing: It keeps the barrel from rotating out of place in the receiver. There is no pressure on this part and nothing moves against it during the firing cycle. Its only purpose is to align the barrel correctly.

With this repair there will be a visible plug, .114 inch in diameter, on the outside of the receiver on the left side. If it ever breaks off again, however, the repair will be easier.

How to Replace the Gas Seals in the Remington 1100

Remington 1100 Tear Down and Disassembly

One of the best videos I have found on the 1100 tear down.

LimbSaver Slip-On Recoil Pad, Large
LimbSaver Slip-On Recoil Pad, Large

This makes a great difference after a long day of shooting. This one is a slip on model and there is also a permanent mount model too.

 

Lubrication points for the Remington 1100

Remington 1100 Competition Master

If there has ever been an all-around champ of shotguns it must be the Remington 1100. It was the first widely successful gas-operated semiautomatic shotgun; heck successful isn't even close to being superlative enough. Hugely successful is modest praise.

From its introduction in 1963, it took only nine years to sell a million of them, the second million passed in 1977 and the third in 1983. The basic design has been made in 12, 20. and 28 gauge as well as 410 bore and in configurations for every type of hunting and all the competitive shotgun sports.

Such success is easily understandable. The 1100 was an incredibly durable and reliable shotgun that sold for a very reason, able price. The latest addition to the line is the 1100 Competition Master, which recognizes the growth of shotgun events in three gun or practical competition. Those events need high capacity, fast shooting shotguns. The Remington 1100's gas operation moderates recoil -- a real plus when shooting lots of buckshot.

Remington has adapted the basic design to fit the specific demands of this type of shooting. The most notable feature is a magazine tube extending the full length of the 22-inch .barrel. A barrel band is needed for support near the muzzle, which also provides an attachment point for a sling swivel. A plain stud is also located in the stock.

The barrel is threaded for Rem-choke tubes and three (improved cylinder, modified and full) are included. Unlike many of today's shotguns which are chambered to accept the 3-inch magnum loads, this one isn't. It holds 8+1 2 3/4-inch shells only.

The metal wears a bead blasted black finish. The stock and forend are gray synthetic. There's a full-length ventilated rib with a Hi Viz fiber optic front sight. The front sight' comes with a series of interchangeable fiber optic inserts allowing a wide choice of colors. The fluorescent green insert was in the gun when it came, I found it really effective shooting on a cloudy day although it might be a bit much in real bright sunlight. This thing really gets your attention. But changing it isn't a problem.

Speed shooting events often require fast reloads, so Remington has modified the carrier release a bit to facilitate loading. It's one of those things you'd never notice if they didn't tell you, but you can tell something is different when you try to load without looking at it. Without taking the gun down from your shoulder it's a snap to stuff shells in the tube. There's also an oversize operating handle which really makes it easy to control the bolt in unloading or clearing a malfunction.

The 1100 Competition Master is equipped with Remington's new R3 recoil pad. This is some very cool, high-tech stuff that makes an incredibly effective pad. It is called R3 because it' absorbs, compresses and redirects recoil. It has a combination of new material and internal design that dramatically reduces how you feel the recoil. I was able to do a direct comparison by shooting a pair of Remington Model 700 rifles chambered for the 7mm Ultra Mag. I don't know how to quantify this, but you could sure feel a difference.

One of the great advantages of gas-operated shotguns is the moderating effect the system has on recoil. At 8 pounds, this gun isn't light, but the combination of weight and the new recoil pad make shooting heavy buckshot loads a whole lot more pleasant than normal.

These reports are not intended to be exhaustive tests but they're a lot more than canned stuff from a press release too. The test gun was fired with everything from the lightest skeet loads to some rather hot near magnum loads with 12 pellets of 00 buck. I even tried mixing the two extremes in the magazine. The gun didn't care -- it functioned with everything I tried. Even though it is designed for a specific competitive event the Model 1100 Competition Master wouldn't be a bad choice for any defensive role.

Thanks for stopping by! I hope you found something useful here, let me know if there is something you want to see or learn about!

TacStar Side Saddle, fits 12 Gauge 6Rd Remington 870/1100/1187, Black
TacStar Side Saddle, fits 12 Gauge 6Rd Remington 870/1100/1187, Black

Quick and easy side mount to keep extra shells ready for rapid reloading.

 

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      anonymous 4 years ago

      I just purchased a 1100 and after shooting I cleaned the gun only to find out that the Breech Bolt was gouging out the top of Receiver. Not good. Any help would be gratefully appreciated.

      Thanks Kirk

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      anonymous 4 years ago

      @anonymous: if u chamber 1 after putting 4 in the mag u will have 5 rounds in the gun.10-4

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      anonymous 5 years ago

      @anonymous: Was fairly easy as it's a pressure fit. Just be sure you have the detent lined up with the slot in the forearm when you press it in. Removal was done with a screwdriver under the lip of the old insert against the forearm wood.

    • ndAirborneMedic1 profile image

      ndAirborneMedic1 5 years ago

      Awesome lens! Very informative. Nicely done!

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      anonymous 5 years ago

      Older model 1100 forearm sleave has outer edge nearest the magazine nut breaking off from the sleave inside the forearm. This causes a movement in the barrel to receiver that shouldn't be there. How hard is it to replace the forearm sleave?

    • profile image

      anonymous 6 years ago

      the feeder latch on my 1100 auto mag has popped out. I attempted to slide it back with no success. I noticed there are two holes on the lower side of the grove the latch sides into. I suspect there was something above the holes that kept the feeder latch depressed and in place.How can it be repaired? thankstwitlubber

    • profile image

      anonymous 6 years ago

      the feeder latch on my 1100 auto mag has popped out. I attempted to slide it back with no success. I noticed there are two holes on the lower side of the grove the latch sides into. I suspect there was something above the holes that kept the feeder latch depressed and in place.How can it be repaired? thankstwitlubber

    • profile image

      anonymous 7 years ago

      @anonymous: the cap in the mag end comes out, it is a pressure fit. stick a screwdriver into the hole in the center and gently lift up, the cap should start to slide up. be careful, there is a spring behind that wants badly to come out - so finesse the cap out till there is just enough edge visible so you can grab the cap with your fingers. pull up slowly, like a champagne cork, till the cap is loose but don't get hit in the face with a flying spring

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      anonymous 7 years ago

      I JUST WANT TO REMOVE THE PLUG IN THE MAG. TUBE TO BE ABLE TO FIT IN 4 ROUNDS INSTEAD OF 2