These Trijicon Night Sights for My 1911 COLT Government 80 Series fits Perfectly, the Rear Sights are Easy to install, But the Front Sights are the most technical to Install. I advise for you to never take any chances to install it yourself, Take it to you LOCAL Gunsmith tho have them properly installed.
Happy Shooting to All and Be Safe....Peace
Pros: Fits Perfect on My COLT 80 Series
Cons: Recommended for Your Local Gunsmith to install it for you
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