This is a Wilson Combat known as the 1911 45ACP Ser 80, model 41580.
When it comes to 1911 reliability" the extractor is the most important component part of your 1911 handgun. A well-designed" properly tuned extractor ensures that your pistol feeds" extracts and ejects reliably every time. All Wilson Combat Bullet Proof Extractors are machined from solid bar stock alloy steel and then specially heat treated for long lasting tension and toughness to resist chipping or breakage.
Features:
Radiused Corners for Extended Life and Smooth Feeding
Heat Treated
S7 Shockproof Tool Steel