Does anybody make a barrel that isn't match? Nice looking pistol. The second pistol is showing some wear on the finish from the brass exiting. If you want a finish to last send it out for IonBond.
Even better, have it nitro-carburized like a Glock. That "finish" doesn't wear off because it's not a finish, but a chemical case hardening process that is thicker (around 0. 004 to 0. 008 inches avg depth) than phosphate finishes, doesn't rust (unless you use 416 SS), etc. The "Melonite" treatment is very similar to the "Tennifer" treatment used in Glocks.
"Melonized steel gun parts will be blue-black in color, and will exhibit surface hardness in the area of RC70, lower coefficient of friction/enhanced surface lubricity, superior running wear performance, superior sliding wear resistance, superior heat resistance, and superior corrosion resistance. The treatment penetrates to a depth of ~. 004" to . 008," with surface dimensional growth of only . 0002" to . 0004"(negligible), so post-treatment fitting is not a concern. Final appearance of the surface is dependent on the type of surface prep used, with surfaces tending to appear a bit smoother than before treatment. Thus, surfaces prepared via our preferred method of aluminum oxide blasting, which have a matte appearance, bear a smoother, yet non-reflective, satin post-treatment appearance. Polished surfaces tend to retain approximately the surface appearance they had prior to treatment. For those who love the look of a "tactical" black finish, Melonite QPQ™ is, without doubt, the best practical surface treatment available for firearms today. "
from
Custom Shop - Custom Finishing / Refinishing Menu at Coal Creek Armory - 865. 966. 4545