Williams Gun Sight Rifle Rear Sight Blade, .250 in. U-Notch, Black

The Williams Gun Sight Rifle Rear Sight Blade with a .250 in. U-Notch in black (Williams Gun Sight part no. 001578) is a replacement rear sight blade built to swap into existing Williams rear sight bodies that accept interchangeable blades. Williams Gun Sight has manufactured iron sights for rifles for decades, and this U-notch blade gives a classic, wide-open notch shape that many hunters prefer for fast target acquisition over a tighter square notch. It’s a simple, affordable way to change a rear sight’s notch style without replacing the entire sight assembly.

Key Specifications

• Blade height of .250 in., sized to match compatible Williams sight bodies.
• Uses a U-notch shape for fast, open sight acquisition.
• Finished in black to match standard rifle sight hardware.
• Sold as a standalone replacement blade, not a complete sight assembly.
• A direct swap for a worn or damaged factory blade on a compatible Williams sight body.

Frequently Asked Questions

Is this a complete rear sight or a replacement blade? This is a replacement blade only, built to swap into a compatible Williams rear sight body.

What notch shape does this blade use? A U-notch, a wide, open shape favored for fast target acquisition.

Buy the Williams Gun Sight Rifle Rear Sight Blade

Swap in a classic U-notch blade on your Williams rear sight. Order the Williams Gun Sight rear sight blade from our Lubbock, Texas gun shop, part of our gun sights lineup, for fast, insured shipping.