Thompson Center200189936
Thompson Center Encore Prohunter Katahdin Rifle Barrel .350 Legend 20" 11/16-24 Threaded Blued$393.75
Availability: In Stock
Current Stock: Out of stock
The Thompson Center Encore Prohunter Katahdin rifle barrel in .300 Blackout gives your interchangeable-barrel Encore platform a new caliber without buying a whole new rifle. This 20-inch blued barrel is threaded 5/8-24, letting you run suppressors or muzzle devices that match your .300 Blackout setup. Whether you're building a subsonic hog gun, a short-range thumper for thick timber, or just want to diversify your Encore's mission, this barrel swap gives you flexibility that single-barrel rifles can't touch.
The .300 Blackout thrives at intermediate distances and shines with subsonic ammunition—a real advantage in areas where noise matters or when hunting pressure is high. The 20-inch length keeps things handy without sacrificing the velocity this cartridge needs to perform. The threaded muzzle is standard for modern .300 Blackout rifles, and the 5/8-24 thread pitch is the industry norm for this caliber, so you'll have no shortage of suppressor and brake options if you want them.
Switching barrels on an Encore is straightforward: you're swapping out the barrel assembly to change calibers and adapt to different hunts and seasons. Thompson Center's modular design means one frame can handle rifle, shotgun, and muzzleloader barrels—this one is purpose-built for centerfire rifle shooting in .300 Blackout. If you already own an Encore platform, adding a new barrel is a smart way to expand your capabilities without the expense and safe-space footprint of another complete rifle.
| Caliber | .300 Blackout |
| Barrel Length | 20 inches |
| Muzzle Thread | 5/8-24 |
| Finish | Blued |
| Platform | Thompson Center Encore |
This barrel is designed for the Thompson Center Encore rifle platform and uses the standard Encore barrel attachment system. Confirm your frame is a rifle-configured Encore before ordering.
The 5/8-24 thread pitch is the standard for .300 Blackout rifles. Most .300 Blackout suppressors and muzzle devices with 5/8-24 threads will fit. Always verify suppressor compatibility with the manufacturer and your local regulations.
Yes. The .300 Blackout's design favors subsonic loads, and the 20-inch barrel length supports both subsonic and supersonic ammunition. Check your load data and ammunition manufacturer recommendations.
You receive the barrel assembly. Installation and any additional components (screws, shims, or tools) should be verified with Thompson Center's current specs or your retailer.
SKU: 200189912
Availability: In Stock
Current Stock: Out of stock
The Thompson Center Encore Prohunter Katahdin rifle barrel in .300 Blackout gives your interchangeable-barrel Encore platform a new caliber without buying a whole new rifle. This 20-inch blued barrel is threaded 5/8-24, letting you run suppressors or muzzle devices that match your .300 Blackout setup. Whether you're building a subsonic hog gun, a short-range thumper for thick timber, or just want to diversify your Encore's mission, this barrel swap gives you flexibility that single-barrel rifles can't touch.
The .300 Blackout thrives at intermediate distances and shines with subsonic ammunition—a real advantage in areas where noise matters or when hunting pressure is high. The 20-inch length keeps things handy without sacrificing the velocity this cartridge needs to perform. The threaded muzzle is standard for modern .300 Blackout rifles, and the 5/8-24 thread pitch is the industry norm for this caliber, so you'll have no shortage of suppressor and brake options if you want them.
Switching barrels on an Encore is straightforward: you're swapping out the barrel assembly to change calibers and adapt to different hunts and seasons. Thompson Center's modular design means one frame can handle rifle, shotgun, and muzzleloader barrels—this one is purpose-built for centerfire rifle shooting in .300 Blackout. If you already own an Encore platform, adding a new barrel is a smart way to expand your capabilities without the expense and safe-space footprint of another complete rifle.
| Caliber | .300 Blackout |
| Barrel Length | 20 inches |
| Muzzle Thread | 5/8-24 |
| Finish | Blued |
| Platform | Thompson Center Encore |
This barrel is designed for the Thompson Center Encore rifle platform and uses the standard Encore barrel attachment system. Confirm your frame is a rifle-configured Encore before ordering.
The 5/8-24 thread pitch is the standard for .300 Blackout rifles. Most .300 Blackout suppressors and muzzle devices with 5/8-24 threads will fit. Always verify suppressor compatibility with the manufacturer and your local regulations.
Yes. The .300 Blackout's design favors subsonic loads, and the 20-inch barrel length supports both subsonic and supersonic ammunition. Check your load data and ammunition manufacturer recommendations.
You receive the barrel assembly. Installation and any additional components (screws, shims, or tools) should be verified with Thompson Center's current specs or your retailer.
SKU: 200189912