Description MAGIK-S Tube – Steel Bravo/HUB Modular Tube (1.375×24) | 2.5″ Length | 1.55″ OD The MAGIK-S Tube is a modular tube component built for strength, alignment, and broad compatibility. Machined from SUS303 stainless steel with a black finish, it offers a rugged look with good corrosion resistance. Specs Length: 2.5 in Outer Diameter: 1.55 in Tube Thickness: 0.11″ Thread Interface: 1.375×24 (1-3/8×24) Bravo / HUB standard Material: SUS303 Stainless Steel Weight: 5.1 oz Finish: Black Compatibility Uses the industry-standard Bravo/HUB (1.375×24) interface for compatibility with many Bravo-pattern modular components and mounting systems. Caliber/host setup depends on the mount/adapter and bore size you choose (not included unless stated in the listing). Common host thread examples (with the correct mount/adapter) 1/2×28 (commonly used on many 9mm hosts / .45 with the appropriate system) 5/8×24 (widely used on many .30 cal hosts) Notes Please verify threading, bore size, and system compatibility with your specific build before purchase. Tube only unless otherwise stated. Typical mechanical properties (room temp, annealed — ) Tensile strength: ~500–750 MPa Yield strength (0.2%): ~190–300 MPa Elongation: ~25–40% Hardness: ~≤ 200 HB (often around mid-B range on HRB) Physical properties Density: ~8.0 g/cm³ Elastic modulus: ~190–200 GPa Melting range: ~1400–1450°C Thermal conductivity: ~16 W/m·K (ballpark for 300-series) Practical notes for your use case (tube/muzzle parts) Great choice when you want nice threads, a clean finish, and fast machining If the part will see harsh salt exposure or heavy heat/erosion, some people prefer 17-4PH, 4140/4150, or 416R/410, depending on design goals Welding: possible but not ideal; 303 is generally not recommended for critical welds
