Static nonfunctional stock attachment, not a whole weapon. Blender Native, 3 packed 2048 BC/ORM/Normal maps, actual Native preview and documented source. Geometry/materials/renders/source generated with automated tools and human-verified. NO GLB. Stock import/re-export fidelity HOLD: 1,071 tangent witnesses, 48 matrix entries; 12-node native→raw TRS exception only (matrix 3.4e-8, world 2.3e-9), not downstream. Native→raw Nmax .00456703°, supported 15-part Tmax .00396521°; tangent unsupported on other 15. Three views saw tangent-affected 13/78 side + 3/88 body; unobserved faces not certified. ORM red neutral not AO. No engine/all-view guarantee. See included START_HERE and closure. Commercial finished-work license, no standalone resale.