Japanese Straight Sword Manganese Steel Dark Blue Blade with Dragon Saya - Black Red Koshirae

The blade is forged from high manganese steel and finished with a dark blue surface treatment that gives it a deep, cool tone distinct from conventional polished steel. A wave-style hamon runs along the entire cutting edge, rendered in a raging fire pattern that creates a jagged silver-white contrast against the blue body. At 40.5 inches overall with a blade width of 1.26 inches and a total weight of 2.9 lb, the straight ninjato profile is clean and imposing. If you are drawn to distinctive Blue Sword aesthetics, this piece sits comfortably within that lineage.

The handle is built on a full tang foundation, wrapping over red PU samegawa with black leather cord bound in a traditional diamond pattern. Red accent menuki sit beneath the cord wrap at precise intervals, adding small but visible pops of color that echo the saya's dragon motif. Alloy fuchi and kashira fittings cap both ends of the tsuka, finishing the handle assembly cleanly.

The tsuba is cast in black alloy using an ornate scroll openwork design - the cutout silhouette gives it visual depth and keeps it from reading as a plain flat disc. A gold-toned habaki collar transitions the blade smoothly into the guard, adding a warm metallic accent between the blue steel and the black hardware.

The saya is lacquered hardwood in solid black, decorated with a hand-applied red dragon design that winds across the upper face. The detail work on the dragon - scaled body, floral accents at the base - is rendered in deep red against the black ground. A gold-and-black braided sageo cord is knotted at the kurigata, completing the koshirae presentation with a traditional finishing touch.

This Single Edged Sword replica measures 40.5 in overall, packages at 43.3 x 3.93 x 3.14 in, and ships at 4.4 lb. The sword stand is not included. Crafted by experienced swordsmiths using proven hand-forging methods, it is finished to koshirae standards and suited for display or collection.