Originally produced by Winchester in 1905, this arm received a custom modification by Turnbull Manufacturing, which upgraded the M1886 to a short barreled, Trapper-style configuration. Raised bead front and adjustable buckhorn rear sights, with the Bloomfield, New York address and "50 EX." caliber markings atop the barrel, "THUMPER" on the upper right, and the casehardened receiver showing the "PW" proof, 3-line model markings on the upper tang, serial number and patent dates on the lower tang. Magazine is 3/4 length, with a fancy checkered walnut stock, casehardened forearm cap, WRA grip cap, sling eyes, and a shotgun profile butt with a solid Pachmayr recoil pad.

Fine as custom made/refurbished, showing some light spotting and handling marks on the otherwise 90% custom blue finish, along with a few hints of a brown patina on the underside of the barrel and magazine tube. The case colors are bright and vivid, especially on the receiver, fading slightly on the underside. The wood is very fine, with a few dents on the checkering, a knot on the comb, and a superb grain pattern, showing especially attractive feathering on the right side of the buttstock. Mechanically excellent.