TWC Optic System

Mount it right.
Trust it every time.

The official installation guide for optic adapter plates on the Jacob Grey TWC9, TWC Black, and Hex.

T-10 Required Torx wrench
12 In-lbs / plate to slide
12–15 In-lbs / optic fasteners

Before you begin

Start clean. Work deliberately.

Confirm the firearm is unloaded, remove the magazine, clear the chamber, and move all ammunition away from the work area. Read the complete process before tightening any hardware.

Official walkthrough

Watch before you torque.

See the plate, T-nut, and fastener sequence before beginning the installation.

Step-by-step installation

Five steps. Zero shortcuts.

Follow the sequence carefully. Incorrect hardware, a twisted T-nut, or excess torque can damage the mounting system.

01

Remove the cover plate.

Use the supplied T-10 Torx wrench to remove the factory cover plate from the slide.

Store the cover plate and original fasteners safely so they can be reinstalled later.

02

Select the correct plate.

Match the adapter plate to the footprint of your specific red-dot sight. Use the official hardware matrix in the downloadable guide to confirm fitment.

Test-fit the optic to the plate before attaching the plate to the slide.

03

Seat the T-nut.

Place the T-nut into the machined pocket on the underside of the optic adapter plate.

Do not insert any screws yet. Confirm that the T-nut sits fully and squarely inside the pocket.

RMR plate warning The RMR plate is wider than the slide, allowing the T-nut to twist during installation. A T-nut that is not correctly seated can deform, fail, or prevent the fastener from reaching proper torque.
04

Attach the plate to the slide.

Use the 4-40 x .250 FH fasteners from the bag marked with the orange dot . These fasteners are specifically for attaching the plate to the slide.

Apply a small amount of Blue Loctite®, then torque the plate fasteners to 12 in-lbs.

Do not over-torque Over-tightening can shear fasteners, damage threads, or compromise the mounting system.
05

Mount the optic.

When the plate is installed correctly, the T-nuts will protrude through the top of the plate. This is normal.

Align the optic with the T-nuts and indexing posts. Use the fasteners specified for your optic in the official hardware matrix.

Start each fastener slowly by hand to verify thread engagement and T-nut alignment. Apply a small amount of Blue Loctite®, then torque the optic fasteners to 12–15 in-lbs.

Hardware quick reference

Use the right hardware in the right place.

Fastener length varies by optic and footprint. Use the complete matrix in the official PDF before mounting your optic.

Orange dot bag

Plate to slide.

Use only the 4-40 x .250 FH fasteners identified for securing the adapter plate to the slide.

Torque: 12 in-lbs
Silver T-nut

Seat it square.

Used with RMR, RMSc, and DeltaPoint Pro plate systems. Fully seat it in the machined pocket before adding screws.

Never tighten a twisted T-nut
Optic fasteners

Check the matrix.

The correct screw depends on the optic footprint and model. Confirm the exact hardware before installation.

Torque: 12–15 in-lbs

Official resources

Keep the complete guide on your bench.

Download the printable installation guide and hardware matrix, read the optic-fitment article, or purchase replacement plates and fasteners.