BudsGunShop.com - Rear sight cut

It is a novak style cut and mine did require slight fitting Dawson precision is the place for sights and sight info Dawson Precision Sights (866) 300-1911. By the way the Ultra FS has excellent fully adjustable sights from the factory

This pistol uses a "Novak Style Cut" ... which has been shown to differ from a "standard Novak Cut". And Randy i is correct - this pistol has great factory sights.

Travis, this RIA 1911 uses a "Standard" 1911 Novak Style Cut. ---- https://dawsonprecision.com/rock-island-1911-novak-style-carry-fixed-fiber-optic-rear-sights/

This has a "Novak type" rear sight cut. A regular, actual Novak sight might well require some fitting work. Dawson Precision Sights could tell you exactly what to expect. Dawson Precision Sights (866) 300-1911. Actually, there is no "standard" rear sight cut for 1911s. Different manufacturers use different cuts/sights.