C+H Precision Optic Adapter Plate Compatible with Glock 17/19 MOS

In this review the C+H Precision Adapter Plate is judged on fit, durability and real-world ease of use for Glock MOS pistols. The plate is aimed squarely at owners of Glock MOS models who want a slim, reliable mounting solution for a Holosun EPS or the C+H COMP and EDC-XL footprints; the single biggest reason to buy is the plate's patented stainless steel T-Nut that delivers nearly double the thread engagement of many competitors, which means a more secure optic mount under recoil and rough use.

Key Features

• Compatibility: Works with Glock MOS models G17, G19, G20, G21, G22, G23, G26, G34, G35, G40, G41, G45 and G47 so buyers with those MOS slides get a direct-fit solution.
• Optic fit: Specifically compatible with Holosun EPS, EPS Carry and C+H COMP and EDC-XL footprints so shooters using those optics get correct alignment and mounting hardware.
• Thread engagement: The patented stainless-steel T-Nut offers six to seven threads of engagement, nearly double competing plates, improving long-term retention of the optic under repeated firing.
• Thin profile: Ultra-thin plate design reduces height over bore, which helps return to target and faster follow-up shots compared with taller adapter plates.
• Materials and finish: Precision machined from 6061 aircraft aluminum and MIL-SPEC Type III hard coat anodized for strong wear resistance and a clean, corrosion-resistant finish.
• Warranty: Includes a 30-day 100% money-back guarantee plus a lifetime warranty against defects in materials and workmanship, giving added post-purchase protection.

Who It's For

The adapter plate is best for Glock owners who already have MOS-cut slides on models listed above and plan to mount a Holosun EPS or C+H sight. It is targeted at duty users, competition shooters, and serious recreational shooters who expect repeatable zero and secure retention from an aftermarket plate.

Those who should look elsewhere include owners of non-MOS Glock models or compact subcompact MOS variants not listed like 43/43X/48 MOS, and shooters who need universal multi-brand footprints beyond the listed Holosun and C+H patterns.

Pros & Cons

Pros

• Patented stainless-steel T-Nut with 6-7 threads of engagement increases mounting security and serviceability.
• Ultra-thin machined aluminum construction reduces height over bore for quicker follow-up shots.
• MIL-SPEC Type III hard coat anodize and stainless hardware add long-term durability and corrosion resistance.

Cons

• Compatibility is limited to specific Glock MOS models and select Holosun/C+H footprints, so it will not fit non-MOS or unsupported MOS variants like 43/43X/48 MOS.

Specifications

Material	6061 aircraft aluminum
Finish	MIL-SPEC Type III hard coat anodized, black
Mounting hardware	Stainless steel included (replaceable)
T-Nut	Replaceable 416 stainless steel T-Post, 6-7 threads engagement
Compatible optics	Holosun EPS, EPS Carry, C+H COMP, EDC-XL
Compatible slides	Glock MOS models: G17, G19, G20, G21, G22, G23, G26, G34, G35, G40, G41, G45, G47

Our Verdict

The C+H Precision Adapter Plate is a solid value for owners of supported Glock MOS models who plan to mount a Holosun EPS or C+H footprint optic. Its thin profile and robust T-Nut mounting system make it a durable, low-profile choice for duty, competition, and range use, and the lifetime warranty backs long-term reliability.

Frequently Asked Questions

Will this plate fit a Glock 43X MOS?
It will not fit 43/43X/48 MOS or non-MOS models; it is only compatible with the listed Glock MOS models.

Which Holosun models are supported?
The plate is made for Holosun EPS and EPS Carry footprints and also fits C+H COMP and EDC-XL patterns.

What happens if a screw or T-Nut is damaged?
The mounting hardware and replaceable T-Nuts are serviceable, so damaged parts can be replaced without swapping the entire plate.