Looking for the rear sight apertures for the Compass Lake Engineering hooded rear sight.
With CLE out of business I haven't been able to locate any online.
Hoping someone may have an idea where to purchase them.

I got this from Copilot AI, and didn’t try to confirm that any of the references were valid, but they might be worth checking if you haven’t already. I suspect some aren’t applicable, but the last one listed mentions custom work.

Compatible Alternatives
These brands offer rear sight hoods and apertures that may be compatible depending on your rifle's threading and sight base:

1. Rock River Arms (RRA)

Offers Match Rear Sight Hoods in various aperture sizes (.030, .040, .046, .052) for around $16 each.
RRA Match Sight Kit includes both front and rear sights [rockriverarms.com]

2. ShootingSight

Offers a wide range of reduced and hooded apertures for M1/M14 and AR15 platforms.
ShootingSight Apertures include rectangular and round options, some with hood assemblies [shootingsight.com]

3. XS Sights

Their AR-15 A2 Rear Apertures feature same-plane dual apertures for consistent zeroing [xssights.com]

4. Blackhawk (via MidwayUSA)

Offers a Same Plane Rear Sight Aperture for AR-15s that maintains zero when switching apertures [midwayusa.com]

5. Apertures ‘N’ More

Custom replacement apertures and adapters for hard-to-find models. Useful if your CLE aperture has unique threading.

sigfreund thanks for the response. Had seen the RRA apertures and they may be the only ones that may work if the threads match what I have.
The CLE version uses a hood like the RRA version except has individual apertures that screw into the hood.
Bushmaster used to make a similar product but apparently no more.