Glock 19/45 Gen 5 MOS OEM ACRO-Cut Slide

Upgrade your Glock with the Glock 19/45 Gen 5 MOS OEM ACRO-Cut Slide — a factory slide milled for direct Aimpoint ACRO mounting, purpose-built for the 19/45 crossover platform. Combining the compact G19 slide length with the G45 full-size frame, this slide delivers a fast, low-profile optic setup with the durability of Glock’s Gen 5 upgrades.

Product Description | Specs for Glock 19/45 Gen 5 MOS ACRO-Cut OEM Slide

Glock machines this slide from high-strength steel and applies its nDLC (nitride) finish for superior corrosion resistance and wear protection. The defining feature of this slide is its ACRO-specific cutout, which mounts the Aimpoint ACRO series directly to the slide without an adapter plate, lowering the optic’s mounting height for a more compact co-witness.

What’s Included — Complete OEM Slide

• Glock 19/45 Gen 5 MOS ACRO-Cut slide (fully assembled)
• Glock Marksman Barrel (GMB), non-ported, 9mm
• Dual recoil spring assembly (Gen 5 style)
• Extractor
• Firing pin assembly & firing pin safety
• Depressor plunger assembly
• Rear slide plate (Gen 5 style)
• Channel liner
• Factory front & rear sights (suppressor-height compatible cut)

What’s Included — Stripped OEM Slide

• Glock 19/45 Gen 5 MOS ACRO-Cut stripped slide
• Channel liner
• Factory front & rear sights

Specifications

• Model: Glock 19/45 Gen 5 MOS ACRO-Cut OEM Slide
• Material: Hardened steel
• Finish: Black nDLC (factory finish)
• Slide Length: Compact (Glock 19 length)
• Slide Width: Approx. 1.00 in (25.5 mm)
• Caliber: 9mm Luger
• Porting: No — standard (non-compensated) slide
• Optic Ready: Yes — ACRO-specific cut (direct mount, no plate required)
• Serrations: Front & rear (Gen 5 standard pattern)

How to Disassemble a Glock 19/45 Gen 5 MOS ACRO-Cut Slide

1. Ensure the firearm is unloaded and remove the magazine.
2. Pull the slide slightly rearward and depress both takedown levers.
3. Release the slide forward and lift it off the frame.
4. Remove the dual recoil spring assembly.
5. Lift the barrel out of the slide.

Now the slide is ready for cleaning, inspection, or maintenance.

How to Install a Glock Slide

1. Insert the barrel into the slide.
2. Seat the dual recoil spring assembly against the barrel lug.
3. Align the slide on the frame rails.
4. Pull the slide fully rearward and release to lock it in place.
5. Perform a full function check before use.

Compatibility

This slide fits Glock 19/45 Gen 5 frames and Gen 5-compatible components. It is not directly compatible with standard Gen 3 or Gen 4 frames without modification. The ACRO cut is designed exclusively for the Aimpoint ACRO series and will not accept other MOS optic footprints without an adapter plate.

Materials & Finish

Constructed from hardened steel and finished with Glock’s nDLC coating, this slide offers enhanced corrosion and wear resistance compared to standard finishes. The ACRO cutout is precision-machined for a low-profile, secure optic mount without sacrificing slide durability.

Customization Options

• Sights: Upgrade to night sights or fiber-optic options; suppressor-height sights recommended for co-witness with the ACRO
• Finish: Apply Cerakote or custom coatings (may affect warranty)
• Optic: Compatible with Aimpoint ACRO P-1/P-2 and ACRO-footprint optics only
• Engraving: Professional engraving or customization available

FAQs

Q: What is the “19/45” designation? A: It refers to Glock’s crossover build — a G19-length slide mated to a G45 full-size frame — combining a shorter slide with a longer grip for improved control and capacity.

Q: What does the ACRO-cut mean? A: The slide is milled specifically for the Aimpoint ACRO footprint, allowing direct mounting without a separate adapter plate.

Q: Can I mount other red-dot optics on this slide? A: Not without an adapter plate — the ACRO cut is footprint-specific and differs from the standard MOS pattern.

Q: Does the complete slide include everything needed to mount my ACRO optic? A: Yes — the slide is machined for direct ACRO mounting; you’ll just need the mounting screws typically included with your Aimpoint ACRO unit.