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Sillybutts Excalibur Threaded Breech — image 1
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Sillybutts Excalibur Threaded Breech

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A breech part designed to allow the Sillybutts Excalibur to accept 16mm threaded-breech barrels, like those from Worker.

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Model information

Category
Outdoor Toys
License
Creative Commons — Attribution — Noncommercial — Share Alike

The Excalibur Threaded Breech is a replacement breech part designed to allow the Sillybutts Excalibur to accept 16mm threaded-breech barrels. Featuring a brass threaded insert in place of the barrel-retaining O-rings, this drop-in turnaround installs easily. 

The threaded breech is compatible with all currently available M16 x 1mm threaded-breech barrels, including ones from Worker, Kuryaka, XYL, and Phantom Tech.

FEATURES:
• Excalibur Threaded Breech
• Quickly swap barrels toollessly
• No retaining screw required!
• Easy springer tuning made even easier 
• Simple upgrade part
• Accepts Worker and Kuryaka threaded-breech barrels
• Also accepts other M16 x 1mm threaded-breech barrels
• Compatible with Sillybutts Excalibur

FILES INCLUDED: 
• 1 Excalibur Threaded Breech

HARDWARE NEEDED:
• 1 M16 x 1mm Brass Heat-Set Insert

RECOMMENDED PRINT SETTINGS:
• Quality: No scarf seams or joints
• Strength: 4-5 wall loops
• Others: Inner brim for better bed adhesion

LINKS:
• Threaded-Breech Barrels

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