PD | Tanfoglio Optic Plate

PD | Tanfoglio Optic Plate (PLEASE SEE NOTES IN RED BELOW)

This Patriot Defense (PD) optic plate system uses the same footprint as Tanfoglio Optic Ready models. It is important to note that Tanfoglio currently has both M3 and M4 screw fastener models in circulation, and compatibility may vary depending on your specific model. (See Notice of Change Below)

PD Optic Plate Specifications

• Material: Steel

• Finish: Nitride

• Included Hardware: 

• Plate Screws: M4 screws fasteners provided
• Optic Screws: 
• Trijicon SRO/RMR - Use PD provided  6-32 X.415" screws
• Holosun Comp/C Series - Use Holosun factory 6-32 short .290"L screws
• Holosun K Series - Use PD provided M4 X 0.7 x 10mm screws
• Shield Sights RMS - Use PD provided M4 x 0.07 x 8mm screws
• Leupold DPP - Use PD provided  M4 x 0.7 x 16mm screws
• Vortex Defender - Use Vortex factory  M4 x 0.7 short 9.8mm L screws

• Compatibility: Direct replacement for Tanfoglio Slide Multi Dot Adaptor Kit – Optic (04ADA00004)

• See Firing Pin Safety Block (FPB) Warning Below

Optic Installation Guidelines

1. Clean Threads – Thoroughly clean the optic screw holes and screws using isopropyl alcohol or acetone. Ensure all oil, debris, and residue are removed.

2. Apply Thread Locker – Apply a small dab of Red Loctite to each screw. Avoid excess to prevent overflow into the optic.  Cure for 24-48 hours before use.

3. Mount Optic – Place the optic onto the slide, aligning mounting holes precisely.

4. Torque Screws – Using a calibrated torque wrench, tighten screws evenly to 12–15 in-lbs. Do not overtighten.

Firing Pin Safety Block (FPB) WARNING

By installing this plate system, you have chosen to alter your slide from its factory specifications.

Due to the larger Plate-to-Slide fasteners used in our PD Steel Plate System, the Firing Pin Block (FPB) will require modification by a qualified gunsmith.

• Approximately 0.040" of material must be removed from the spring side of the FPB to allow proper clearance into the shallower FPB hole on the bottom of the PD Steel Plate.

• Ensure proper FPB function before reinstalling the slide onto the frame and discharging the firearm.

• A qualified gunsmith must inspect the FPB and firearm before use.

• Note: Patriot Defense cannot verify proper function without both the slide and frame present and the plate installed.

Slides Milled for PD Plate System

Upon receipt of your slide from Patriot Defense slide milling services for the optic plate system, a qualified gunsmith must inspect and verify the safety block function with the complete firearm before it is used. The following checks are critical:

• ✅ Block Function – Ensure the FPB fully blocks the firing pin unless the trigger is depressed.

• ✅ Sear Interface – Confirm the FPB does not require additional fitting at the sear interface. Improper fitting can cause hammer follow (the sear lifting from hammer hooks when racking the slide).

Note: In circumstances where Patriot Defense has your complete firearm and this PD optic plate system is installed, Patriot Defense will verify proper function before shipping.

NOTICE OF CHANGE

As of the 2nd Quarter of 2025, Tanfoglio Optic Ready handgun imported were shipped with M3 screw fasteners for the plate system.

 Our PD Optic Plate System is designed for the previous optic cut that required a M4 screw from the factory.

⚠️ Important: Please verify which screw your handgun utilizes before placing an order for this product.

We are currently developing an option compatible with the new M3 fasteners; however, it is not yet available.