This item allows you to add a Flip Up Front Sight to your Colt M4/M4 OPS Tactical Rimfire rifles. Barrel mounted system replaces the factory front sight assembly. This sight does not have a gas port hole and is designed for rimfire use only. Durable metal construction.
Using genuine Colt parts ensures the same fit, finish, and quality found on the original firearm. Made on the same machinery and to the same standards guarantees factory safety, appearance, and proper function. Colt factory parts ensure the firearm will maintain its value over time.