Carlson's Magazine Extension Tube Remington 870, 1100, 11-87, V Max 12 Gauge Parkerized
CARLSON'S
The Carlson's Barrel Seal Kit for Remington 1100/11-87 is a straightforward maintenance essential for semi-auto shotgun owners who want to keep their gas system running reliably. Whether you're a clay target shooter putting rounds downrange weekly or a waterfowler heading out for opening week, a worn or degraded barrel seal (gas o-ring) can cause feeding issues, cycling problems, or gas leakage that turns a day afield into frustration. This kit lets you replace that seal without a gunsmith visit—a task that's well within reach of anyone comfortable doing basic gun maintenance.
Carlson's makes this seal kit in black rubber, available in gauges to fit 12, 16, 20, and 28 ga. shotguns. The design is graphite coated, which means it's built to handle the heat cycles and chemical exposure that come with running a gas-operated shotgun. Because the 1100 and 11-87 are still some of the most popular semi-auto shotguns in the field, keeping a spare seal on hand is cheap insurance against downtime when you need your gun to work.
This kit is made specifically for Remington's classic autoloader lineup, though Carlson's notes that many aftermarket o-ring seals cross-apply to other semi-auto shotgun platforms. Always confirm your specific model and gauge before ordering. Installation typically takes just a few minutes if you're comfortable with basic takedown; your owner's manual will walk you through it. A fresh seal often resolves cycling gremlins that seem mysterious until you realize the gas system has lost its seal to wear.
| Product Name | Barrel Seal Kit |
| Brand | Carlson's |
| Compatibility | Remington 1100, Remington 11-87 |
| Gauges | 12, 16, 20, 28 |
| Material | Black rubber with graphite coating |
| Type | Gas o-ring / barrel seal |
Yes—this kit is designed specifically for Remington 1100 and 11-87 semi-auto shotguns. Confirm your gauge (12, 16, 20, or 28) before ordering to ensure the correct fit.
Common signs include irregular cycling, failure to feed or eject smoothly, or visible gas leakage from the gas system. A worn or degraded o-ring is a frequent culprit. If your shotgun has seen years of use, a fresh seal is inexpensive preventive maintenance.
No—replacing the barrel seal is a straightforward task for anyone comfortable with basic shotgun takedown. Consult your Remington owner's manual for step-by-step instructions. It typically takes just a few minutes.
The graphite coating enhances durability and heat resistance, helping the seal withstand repeated gas cycle temperatures and pressure over extended use, which prolongs the life of the seal.