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FN 509 Tactical Countersunk Screw, .375 (512)

Name: FN 509 Tactical Countersunk Screw, .375 (512): Midwest Gun Works
Brand: FN America
SKU: 66-100541-2
Price: 4.5 USD
Availability: InStock
Rating: 5.0 (1 reviews)

Code: 66-100541-2

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Ratings Snapshot

5.0

out of 5

5 (1)

4 (0)

3 (0)

2 (0)

1 (0)

$4.50

Description
Specifications
Reviews

Product Description

•••••

Description: FN 509 Tactical Countersunk Screw, .375 (512). This countersunk screw is made of steel and features a black finish. It features a Torx head and measures 0.375" overall. This is an FN factory original screw for FN 509 tactical pistols chambered in 9mm. Sold individually, two of these screws are used to mount the Docter, Borris, or Vortex Venom MRD (miniature red dot) plate. This OEM part is made to the highest factory standards in materials and workmanship. Feel secure in knowing the part you order will be the same as the worn or missing part from your FN America firearm.

To ensure that you receive the correct mounting hardware for your FN 509 Tactical, please review the chart below.

Note: It is recommended that all FN America parts be installed by a qualified and trained gunsmith.

Manufacturer: FN America

PRODUCT SPECIFICATIONS:

Brand: FN America
Caliber: 9mm
Finish / Color: Black
Firearm Type: Pistol
Material: Steel
Models Fit: FN 509

Specifications

•••••

Brand: FN America
Caliber: 9mm
Finish / Color: Black
Firearm Type: Pistol
Material: Steel
Models Fit: FN 509

Customer Ratings & Reviews

•••••

Ratings Snapshot

5.0

out of 5

5 (1)

4 (0)

3 (0)

2 (0)

1 (0)

5.0

out of 5

5 (1)

4 (0)

3 (0)

2 (0)

1 (0)

1 Total Reviews

FN 509 Tactical Countersunk Screw to remove optics and attach filler plate

5 out of 5

Tim

Location: Montana

Date: August 18, 2026

The screw was just slightly longer than the original factory screw but it worked to securely fit the plate in place. The part selection diagram has an interactive function where you click on the part and it brings up the part and part # which is GREAT to find and order the right part!

Recommended

1 Total Reviews