OSA HK Mark 23 (MK23) Optic Cut – Aimpoint ACRO
Upgrade your Heckler & Koch MK23 with a precision-machined Aimpoint ACRO optic cut, allowing the optic to mount directly to the slide for maximum durability, improved reliability, and a lower mounting height than adapter plates.
Designed for one of the most iconic .45 ACP pistols ever produced, this service provides a clean, professional installation that maintains the rugged character of the MK23 while adding the capability of a modern enclosed-emitter red dot.
Service Includes
- Precision CNC machining for the Aimpoint ACRO footprint
- Direct optic mounting (no adapter plate required)
- Precision-machined recoil bosses for a secure optic fit
- Slide inspection prior to machining
- Final quality inspection before return shipment
Please Note: Optic cuts are performed by one of OSA's trusted machining partners and are not completed in-house.
Cerakote Options
Choose the finish that best matches your build:
- Optic Cut Only (Cold Blued Machined Area)
- Single Color Cerakote
- Custom Camo Pattern Cerakote
A Cerakote finish is highly recommended to restore corrosion protection to the freshly machined surface while giving your slide a custom appearance.
Why Choose a Direct-Milled ACRO Cut?
- Lower optic mounting height than adapter plates
- Stronger and more secure mounting system
- Improved durability under heavy recoil
- Better sight picture and faster target acquisition
- Clean, factory-style appearance
Compatible Optic
Designed specifically for:
- Aimpoint ACRO P-2
- Aimpoint ACRO P-1
Shipping Instructions
When shipping or dropping off your slide, please include:
- A printed copy of your order invoice
- Your complete or stripped MK23 slide
Please do not send your frame, magazines, ammunition, or other unnecessary components unless instructed.
Turnaround Time
Expected Lead Time: 2–3 Weeks
Your slide will be professionally machined, inspected, and returned ready for optic installation.
Why Choose OSA?
Ocean State Armory partners with trusted industry specialists to provide precision optic machining while maintaining the same commitment to quality, customer service, and attention to detail you've come to expect from OSA.
Whether you're modernizing a classic HK MK23 or building a duty-ready handgun, we'll ensure your slide receives the professional treatment it deserves.
Precision Machining. Professional Finishing. Trusted by OSA.
