Thompson Center In-Line Capper, Holds 17 No. 11 Caps

• 17-cap capacity: Holds up to 17 No. 11 caps, so reload supplies stay together and ready when shooting or hunting with a muzzleloader.
• In-line capper format: The slim in-line design helps place percussion caps in a controlled way, which is useful when handling small components around the nipple.
• Brass construction: The brass body gives the capper a durable, field-ready build that stands up well to repeated handling in a possibles bag or pocket.
• Made for primers: Built specifically as an accessory for primers, it keeps cap handling more organized than carrying loose caps in the field.
• Compact muzzleloader accessory: As part of the Thompson Center Accessories range, it fits naturally into a practical black-powder kit for range use and hunting trips.

About the Thompson Center Accessories Series

The Thompson Center Accessories series is built around practical field gear for hunters and outdoor shooters. The range covers products for carrying firearms and binoculars as well as accessories intended for muzzleloader reload supplies, so the series is less about cosmetic add-ons and more about equipment that supports real use in the field. That makes it a natural fit for black-powder shooters who want their essentials organized, protected, and easy to reach.

Within the wider Thompson Center lineup, this series serves users who value straightforward function and familiar handling. The products are intended for hunters and other outdoor users, with designs that emphasize portability, simple operation, and compatibility with common field routines. In practice, the series brings together the smaller but important items that help keep a muzzleloader setup efficient, whether that means carrying reload components, managing optics in the field, or keeping key accessories close at hand during a day outdoors.

About the Thompson Center In-Line Capper, Holds 17 No. 11 Caps

The Thompson Center In-Line Capper is a simple muzzleloader accessory designed to make handling No. 11 percussion caps more orderly and more convenient in the field. By holding 17 caps in one compact tool, it reduces the need to fumble with loose caps when preparing a muzzleloader for the next shot. That is especially useful in cold weather, low light, or any situation where fine motor control is reduced and small ignition components are harder to manage.

The in-line layout keeps the capper narrow and easy to carry, while also helping guide caps toward the nipple in a more controlled manner than loose handling. For shooters using traditional black-powder or in-line muzzleloaders set up for No. 11 caps, this style of accessory supports a smoother loading routine and helps keep ignition supplies protected from being scattered in a pocket or possibles pouch.

Its brass construction suits the role well. Brass is durable, resists hard field use, and gives the tool a solid feel without unnecessary complexity. The result is a compact, purpose-built accessory that fits naturally into a muzzleloader kit: small enough to carry easily, but useful every time caps need to be stored, organized, and applied with better control.

About Thompson Center

Thompson/Center Arms traces its firearms business to 1967 and is headquartered in Rochester, New Hampshire, United States. The company has long focused on firearms for hunters, shooters, and outdoor enthusiasts, with a history that includes muzzleloaders, black-powder accessories, interchangeable firearm systems, and precision rimfire rifles. That background makes the brand especially relevant in the muzzleloading category, where practical field accessories remain an important part of the shooting system.

Among its better-known product families are the T/C Encore platform and the Triumph muzzleloader line. The brand became part of Smith & Wesson in 2007, and Gregg Ritz acquired Thompson/Center Arms in 2024. Across those changes, Thompson Center has remained closely associated with hunting-oriented firearms and the supporting accessories that go with black-powder shooting.

Main Features

• Manufacturer: Thompson Center
• Series: Thompson Center Accessories
• Category: Muzzleloader Accessories
• Material: Brass
• Accessory for: Primers
• Color: Brass
• Capacity: Holds 17 No. 11 Caps

Warranty

2 years. This Thompson Center accessory is covered by a 2-year warranty, giving defined coverage for defects in materials and workmanship within the stated period.