PMM Independent Drop-In Rear Sight for Trijicon RMR & RMRcc
Not Yet Rated | Write the First Review SKU: 222-C&H-BUIS-IDRS-RMR
UPC: 616943732818
MFG#: BUIS-IDRS-RMR

PMM Independent Drop-In Rear Sight for Trijicon RMR & RMRcc

The PMM IDRS (Independent Drop-In Rear Sight) is the low-profile backup sight your RMR-equipped pistol deserves. Whether you’re running a slide-mounted RMR or RMRcc, this compact rear sight gives you the function of a rear iron without blocking your optic’s window or cluttering your sight picture.

Designed by Parker Mountain Machine and trusted by shooters who demand speed, precision, and reliability — this is the backup sight that stays out of your way until you need it.

🔧 Why Choose the PMM Drop-In Rear Sight?

Unlike traditional suppressor-height sights that can obstruct or distract from your red dot, the IDRS sits just low enough to stay invisible when not needed, but still usable in emergencies.

• No plate required – mounts directly to RMR footprint

• Ultra low-profile rear sight

• Co-witness capable depending on front sight and optic setup

• Fast target acquisition without rear sight interference

• Drop-in install with no machining or gunsmithing required

✅ Compatible With:

This rear sight is designed to fit:

• Trijicon RMR

• Trijicon RMRcc

• Any RMR-cut slide with standard optic mounting screws

It’s also been used successfully on Glock MOS platforms and other RMR-pattern slides. We recommend pairing it with Dawson Precision front sights for optimal performance.

Note: The IDRS is not compatible with dual-illuminated RMR models.

🛠️ Simple Installation

Mounts using your existing RMR mounting pattern. Just torque to spec using thread locker and follow included instructions. No need for sight pusher tools or slide milling.

🧠 Who This Sight Is For

• EDC (Everyday Carry) users wanting a backup sight with zero clutter

• Competitive shooters seeking fast, unobstructed transitions

• Duty & defensive pistol users who require a fallback iron solution

• Red dot users frustrated with oversized suppressor-height rear sights

If you’ve ever tried to co-witness but ended up blocking half your optic, this is your fix.

👁️‍🗨️ Designed for Visibility – Only When You Need It

You’re investing in a red dot for speed and focus. Don’t compromise that by installing a rear sight that shadows your view. The PMM IDRS gives you peace of mind without visual noise. It’s there when you need it and gone when you don’t.

🛒 Order Now with Confidence

This product is in high demand and often backordered — grab one while they’re in stock. Your red dot deserves better backup.

🔍 Frequently Asked Questions (FAQ)

Q: Will this sight co-witness with my red dot?
A: It depends on your front sight height and the optic model. This rear sight is low-profile by design, so co-witness is possible with compatible front sights like those from Dawson Precision.

Q: Does this fit the Trijicon RMRcc?
A: Yes, the PMM IDRS is compatible with both the RMR and RMRcc, assuming your slide supports the RMR footprint.

Q: Can I install this without a gunsmith?
A: Absolutely. The PMM IDRS uses the same mounting pattern as your red dot. With proper torque and thread locker, it's a drop-in install.

Q: What slides are compatible with this rear sight?
A: Any slide cut for the Trijicon RMR footprint, including Glock MOS, CZ, SIG, and aftermarket RMR-cut slides. Always check screw depth and optic height for fit.

Q: Why not just use a suppressor-height rear sight?
A: Suppressor-height sights can block your red dot window or slow down target acquisition. The PMM IDRS provides a cleaner sight picture while still offering backup aiming capability.