SIG P322 Rear Sight Replacement – Drop-In Elevation Fix

Tired of your P322 rear sight drifting out of zero?

The SIG P322's factory cam-lock elevation adjustment is known to loosen under recoil — you sight it in, shoot a few magazines, and your point of impact walks. Our drop-in rear sight replacement fixes it at the source.

We ditched the cam-lock and replaced it with a locking set screw that holds your elevation put, round after round. It's a true drop-in: it reuses your factory sight blade and parts, needs no gunsmithing, and installs in minutes.

Why P322 owners run it:

• Locks your zero — set-screw elevation won't drift like the factory cam-lock
• True drop-in — uses factory parts, installs in minutes with basic tools
• Built to last — high-strength ASA, with a stainless steel locating pin on the upgraded version
• Dialed for accuracy — precision-fit for a solid, repeatable sight picture
• For any P322 shooter — plinking, competition, or carry

Stop re-zeroing every range trip and get your P322 holding point of impact for good.

Install note: Do not use Loctite on this sight — it reacts with the material and can cause cracking. The set screws hold securely without it. (See the LOCTITE 243 technical data sheet.)

Install video: Watch the install
Demonstration: See it in action

Frequently Asked Questions

Why does my SIG P322 rear sight keep losing its zero?
The factory P322 holds elevation with a cam-lock that's known to loosen under recoil, so your point of impact drifts after a few magazines. This replacement swaps that cam-lock for a set screw that locks elevation in place. Read our full breakdown of the P322 elevation problem and how to fix it →

Is this a drop-in install, or do I need a gunsmith?
It's a true drop-in. It reuses your factory sight blade and parts and installs in minutes with basic tools — no gunsmithing required.

Does it replace the whole sight or just the mount?
It replaces the rear sight mount and reuses your existing factory components, so you keep your original sight picture.

Can I use Loctite on the set screws?
No. Loctite reacts with the material and can cause cracking — the set screws hold securely without it.

Will it fit my P322?
It's designed specifically for the SIG Sauer P322. Check the install and demonstration videos above to see exactly how it fits.

What is it made from?
It's made from high-strength ASA, and the upgraded version adds a stainless steel locating pin for extra durability.