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Quick Look

The Glock 45 MOS was introduced to combine the compact slide of the Glock 19 with the full-size frame of the Glock 17. Designed for fast handling and improved control, it merges duty-grade performance with modular optic capability. The Glock 45 MOS is increasingly popular among law enforcement and competitive shooters seeking out-of-the-box red dot readiness.

Why It's a Top Choice

Modular Optic System supports common red dot footprints
Full-size grip improves control and reload speed
Compact slide enhances concealability and draws
Front slide serrations allow easy racking and press checks
Glock reliability with Gen5 refinements

Key Variants

Glock 45 MOS

Best for those who want optic-ready features on a hybrid Glock frame.

Glock 45

Same frame and slide size without factory optic cut--ideal for iron-sight users.

Glock 19 MOS

Smaller frame with similar MOS features--better for concealed carry.

Glock 17 MOS

Full-size slide and frame with MOS--ideal for duty or competition.

Competitor Comparison Table

Feature	Glock 45 MOS	Sig Sauer P320 XCarry	Smith & Wesson M&P M2.0 Compact OR
MSRP	$745	$799	$679
Capacity	17+1	17+1	15+1
Weight (unloaded)	24.5 oz	26 oz	25 oz
Optics-ready	Yes	Yes	Yes
Trigger type	Striker-fired	Striker-fired	Striker-fired
Notable pro	Hybrid frame blends concealment with full grip	Modular fire control unit	Aggressive grip texture
Notable con	No manual safety option	Bulkier slide profile	Lower standard capacity

Best Use Cases

Duty sidearm for law enforcement
Red dot pistol competition
Home defense with optic advantage
Range training with full-size control
Concealed carry for larger body types

FAQs

Can I mount an optic directly on the Glock 45 MOS?

Yes, the Modular Optic System (MOS) comes with adapter plates supporting popular red dot footprints.

What is the frame size of the Glock 45 MOS?

The Glock 45 MOS has a full-size frame (like Glock 17) but a compact slide (like Glock 19).

How does the Glock 45 MOS differ from the Glock 19 MOS?

The Glock 45 MOS has a longer grip for better control and higher capacity than the Glock 19 MOS.

GLOCK 45 MOS for Sale