Parts and upgrades for the 1911 platform — Government (5"), Commander (4.25"), and Springfield's double-stack Prodigy variant. Most of the stock in this category serves the classic Government-size .45 ACP host, with sights cut for Colt and Novak dovetails.
What fits which 1911
Slides — Ed Brown Government 5" .45 ACP stainless slide cut for the Trijicon RMR, and a Commander 4.25" slide with dovetail sight cuts. Slides ship as housings; barrel, sights, and internals are separate.
Sights — Trijicon HD Night Sights in orange or yellow front for Colt 1911 dovetails, Trijicon fiber-optic sights for the Novak rear cut, and TruGlo Brite-Site TFX for a 3" host.
Muzzle devices — a 1911 Government 5" .45 ACP compensator for reduced muzzle rise on the range gun.
Optic mounts — Springfield AOS mounting plate for the Holosun 509 on the 1911 DS Prodigy.
Verify sight cut (Novak vs. Colt), frame size (Government / Commander), and caliber before you buy — 1911 parts are host-specific and not cross-compatible with striker-fired pistols. Free shipping at 3CR. See compensators for other muzzle brakes, other pistol platforms for non-1911 upgrades, or cases and bags for range storage.
