RDO SOLUTION: 92 RDO OPTIC FOOTPRINTS AND RDO FAQ'S

Please confirm your optic's footprint PRIOR to placing your order, as we cannot accept ANY returns on RDO plates. 

Please note for slides with a built-in front sight (92F, 92FS, M9, etc) we cannot mill a dovetail or install a taller co-witness front sight, as there is not enough material near the front end of the slide to do so.

Note: Our plates will not work in conjunction with ANY other adapter plates.

Q: What is the co-witness of the RDO BUIS?

A: The LTT RDO included front & rear BUIS is a lower-1/3rd co-witness depending on the optic, different optics will affect the co-witness position.

Q: What red dot optics are supported by the LTT RDO Solution?

Our RMR Plate fits:

• Trijicon RMR
• Trijicon SRO
• Trijicon RMR HD
• Holosun HS407C
• Holosun HS507C
• Holosun HS508T
• Riton X3 Tactix PRD
• NcStar VISM FlipDot Pro
• Swampfox Kingslayer
• DOES NOT FIT RMRcc
• DOES NOT FIT RCR (Trijicon's proprietary capstan screws will not work with our t-nut inserts)
• RMR to Plate Screws: Holosun to the RDO Plate use: 4x40 – 5/16 and the RMR or SRO to the RDO Plate use: 4x40 – 3/8

Our Docter Plate fits:

• Docter/Noblex Sight C
• Docter/Noblex sight 2+
• Docter/Noblex sight III
• Docter/Noblex QUICKsight 5.0 VR
• Noblex Sight G
• Vortex Venom
• Burris Fastfire 2*
• Burris Fastfire 3*
• Delta Optical MiniDot*
• Delta Optical MiniDot II*
• Hawke Reflex 1×25*
• Sightmark Mini Shot Pro Spec*
• Sightmark Mini Shot M-Spec
• Leica Tempus
• MAKdot 1×25
• Vomz Pilad 1×20
• Docter Optic to Plate Screws: 4x40 - 3/8 or 4x40 - 5/16
• Not Available for 92X Performance, 92XI, 92X RDO, or M9A4

Our Sig Romeo/Delta Plate fits (no built-in rear sight):

• Leupold Delta Point Pro
• Sig Sauer Romeo 2
• Delta/Romeo Optic to Plate Screws: 4x40 - 1/2
• Not Available for 92X Performance, 92XI, 92X RDO, or M9A4

Our HE509T Plate fits:

• Holosun HE509T

Note: Our 509T Plate will not fit the 509 ACSS

Our Holosun EPS Plate fits:

• Holosun EPS
• Holosun EPS Carry
• Holosun 407k
• Holosun 507k
• Note: If you order this plate for your existing LTT RDO slide, you will also need the corresponding correct front sight (included with the plate). The EPS Plate uses a much lower BUIS rear sight and will not work correctly without this shorter front sight.
• EPS Optic to Plate Screws: 4x40 - 5/16

The Jagerwerks BROS (Battle Ready Optic Shield for the Trijicon SRO) will fit on our system, however we do not recommend it as it adds more pull to the plates, screws and optics on the gun as the gun cycles.  

RSF (Rear Sight Forward)

The following footprints are available in a rear sight forward configuration:

1. ACRO
2. RMR
3. 509T
4. EPS

Looking for replacement screws? You can find them here.

NOTE: These plates will not fit on the Beretta M9A4 or 92X RDO solutions AS IT COMES from Beretta. These will only work with LTT’s proprietary RDO solution. 

Sorry, We Cannot Accept ANY Returns on RDO Plates.

What red dot optics work with the Rear Sight Forward RDO plates?

Our ACRO Plate fits:

• Aimpoint ACRO P1
• Aimpoint ACRO P2
• Steiner MPS

WE HAVE NOT CONFIRMED FITMENT WITH ANY OTHER ACRO-FOOTPRINT OPTICS. 

Our RMR Plate fits:

• Trijicon RMR
• Holosun HS407C
• Holosun HS507C
• Holosun HS508T
• Holosun 507 Comp
• Riton X3 Tactix PRD
• Swampfox Kingslayer

DOES NOT FIT:

• Trijicon SRO
• Trijicon RMR HD
• RMRcc
• Trijicon RCR (Trijicon's proprietary capstan screws will not work with our t-nut inserts)

RMR to Plate Screws: Holosun to the RDO Plate use:  4x40 – 5/16 and the RMR or SRO to the RDO Plate use: 4x40 – ⅜

Our HE509T Plate fits:

• Holosun HE509T 

Note: Our 509T Plate will not fit the 509 ACSS

Our Holosun EPS Plate fits:

• Holosun EPS
• Holosun EPS Carry
• Holosun 407k
• Holosun 507k
• Note: If you order this plate for your existing LTT RDO slide, you will also need the corresponding correct front sight (included with the plate). The EPS Plate uses a much lower BUIS rear sight and will not work correctly without this shorter front sight. 

EPS Optic to Plate Screws: 4x40 - 5/16

Important Note Regarding RDO Plate Compatibility: This is not a comprehensive list of all the optics that may work with our plates. Our plates have been designed to fit tightly with the optic body of the main optic it was designed for. Other optics manufacturers may use the same footprint for mounting but have a different size optic body or may change the size of their optic body without warning. We cannot guarantee fit with all manufacturers that use these listed footprints. 

For more information on RDO Mounting Footprints, please click this link: Optics Info 

DISCLAIMER: We recommend that this product as well as all other firearms parts & kits sold by Langdon Tactical be installed by a competent pistolsmith. No liability is expressed or implied for ANY damage or injury which may result from improper installation or use of this product. Installation of any firearm parts may limit or void the manufacturers warranty. We strongly recommend that the safety and operation of your modified handgun be thoroughly checked by an accredited gunsmith prior to use.