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What Handguns Fit the Holosun 509T X2 Green?

76 compatible handguns verified • 54 direct fit • 22 with adapter plate

📋 Quick Answer

The Holosun 509T X2 Green fits 76 handguns. 54 pistols accept direct mounting with the RMR footprint—no adapter needed, including the Beretta 92X RDO, Beretta APX A1 Compact, Beretta APX A1 Full Size. 22 additional handguns are compatible using adapter plates that convert other slide cuts to the RMR pattern. This compatibility data is SWAT Optics Verified.

Does the Holosun 509T X2 Green fit my handgun?

The Holosun 509T X2 Green uses the RMR footprint mounting pattern. If your handgun has a RMR-cut slide, the Holosun 509T X2 Green mounts directly without adapters. SWAT Optics has verified 54 handguns with direct RMR compatibility. For handguns with different slide cuts (like Glock MOS, Sig RX, or Springfield OSP), you'll need an adapter plate—22 handguns work this way. Check the lists below to find your specific handgun model.

Holosun 509T X2 Green pistol red dot sight

Holosun 509T X2 Green

Footprint: RMR Emitter: enclosed MSRP: $469.99 Compatible: 76 handguns
76
Total Compatible
54
Direct Fit
22
With Adapter
56
Recommended

Which Handguns Accept the Holosun 509T X2 Green Directly?

54

These 54 handguns have RMR-cut slides that accept the Holosun 509T X2 Green without any adapter plate. The optic mounts directly to the slide using the included hardware. Direct mounting provides the lowest possible sight height and most secure fit.

Beretta 92X RDO ★ Recommended

Slide Cut: Beretta 92X Cut
Direct fit - RMR footprint

Beretta M9A4 ★ Recommended

Slide Cut: Beretta 92X Cut
Direct fit - RMR footprint

FN FNX-45 Tactical ★ Recommended

Slide Cut: FNX Tactical Cut
Direct fit - RMR footprint

Glock 17 Gen6 ★ Recommended

Slide Cut: Gen6 ORS
Gen6 ORS - direct mount with included plate

Glock 19 Gen6 ★ Recommended

Slide Cut: Gen6 ORS
Gen6 ORS - direct mount with included plate

Glock 45 Gen6 ★ Recommended

Slide Cut: Gen6 ORS
Gen6 ORS - direct mount with included plate

Glock 49 Gen6 ★ Recommended

Slide Cut: Gen6 ORS
Gen6 ORS - direct mount with included plate

IWI Masada ★ Recommended

Slide Cut: IWI Optics Ready
Direct fit - RMR footprint

IWI Masada Tactical ★ Recommended

Slide Cut: IWI Optics Ready
Direct fit - RMR footprint

Kimber KDS9 ★ Recommended

Slide Cut: Kimber Cut
Direct fit - RMR footprint

Kimber KDS9c ★ Recommended

Slide Cut: Kimber Cut
Direct fit - RMR footprint

Ruger Ruger-57 ★ Recommended

Slide Cut: Ruger 57 Cut
Direct fit - RMR footprint

Showing 25 of 54 direct-fit handguns. Search the full database for more options.

Which Handguns Need an Adapter Plate for the Holosun 509T X2 Green?

22

These 22 handguns require an adapter plate to mount the Holosun 509T X2 Green. The adapter converts the handgun's native slide cut to the RMR footprint pattern. Adapter plates are available from various manufacturers and typically cost $20-50.

Showing 20 of 22 adapter-compatible handguns. Search the full database for more options.

Frequently Asked Questions About Holosun 509T X2 Green Compatibility

What handguns fit the Holosun 509T X2 Green?

The Holosun 509T X2 Green fits 76 handguns total. 54 pistols accept direct mounting without adapters, while 22 additional handguns are compatible using adapter plates. Popular direct-fit options include Beretta 92X RDO, Beretta APX A1 Compact, Beretta APX A1 Full Size, Beretta M9A4, Canik TP9 Elite Combat, Canik TP9 El....

Does the Holosun 509T X2 Green require an adapter plate?

It depends on your handgun's slide cut. If your pistol has a RMR-cut slide, the Holosun 509T X2 Green mounts directly—no adapter needed. Handguns with other slide cuts (like Glock MOS, Sig RX, or Springfield OSP) require an adapter plate to convert to the RMR pattern.

What mounting footprint does the Holosun 509T X2 Green use?

The Holosun 509T X2 Green uses the RMR mounting footprint. This is a standardized hole pattern that determines which slides the optic can mount to directly. Other popular footprints include Trijicon RMR, Shield RMSc, and Aimpoint ACRO.

What fits the Holosun 509T X2 Green?

The Holosun 509T X2 Green fits 76 handguns total. 54 accept it with direct fit (no adapter needed), and 22 require an adapter plate. Popular options include Beretta 92X RDO, Beretta APX A1 Compact, Beretta APX A1 Full Size, Beretta M9A4, Canik TP9 Elite Combat.

What footprint is the Holosun 509T X2 Green?

The Holosun 509T X2 Green uses the RMR footprint mounting pattern.

Which handguns can mount the Holosun 509T X2 Green without an adapter?

54 handguns accept the Holosun 509T X2 Green with direct fit: Beretta 92X RDO, Beretta APX A1 Compact, Beretta APX A1 Full Size, Beretta M9A4, Canik TP9 Elite Combat, and 49 more.

Is the Holosun 509T X2 Green good for concealed carry?

Yes, the Holosun 509T X2 Green has an enclosed emitter which protects the lens from debris, making it ideal for concealed carry.

How is this compatibility data verified?

SWAT Optics verifies all compatibility through physical testing. Our database contains 262+ handguns, 110+ optics, and 4,900+ verified records.

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