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Questions & Answers
What is exact height gained? Im looking at some risers for a low 1” scope mount wondering if this will work Expert Answer

The Strike Industries R.EX Riser - Low Profile, Lightweight Riser for AR Platforms with spacer will add 0.63" of height.

by Hunter, Gear Expert, August 11, 2022
can i use this as a low mount for Romeo 5 red dot, to act like a low mount? Expert Answer

No. You would need a mount with a T1/T2 footprint that directly fits to your Romeo 5. I recommend the Midwest Industries QD mount found using the following link.
https://www.opticsplanet.com/midwest-industries-aimpoint-t-1-lower-1-3-qd-mount.html?_iv_attachment-mount-type-1726386052=low-profile

by Ethan, Gear Expert, February 9, 2022
Customer Reviews
Most Recent Reviews
Height solid! by paulo, Verified Owner, October 9, 2024
Im using at to mount the sight higher than the camera lens hood. Solid and sturdy base mounted on cameras hot shoe.
Most Recent Reviews
Fits nicely; looks good. by graphchrono, April 3, 2022
Not much more to say about it. It fit properly and stays secure on the picatinny rail, It is compatible with the red dot sight I am using, and the anodized finish looks good and appears durable thus far.
0/1 found this helpful
Most Recent Reviews
Exactly what I needed by Knolan Owens, Verified Owner, November 18, 2021
This riser is perfect for what I needed. It raised my red dot perfectly in line with the BUIS. Perfect for any low profile red dot to raise it and get a comfortable eye angle and sight picture. You can directly mount a pic rail attachment (sight/ligh...
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Most Recent Reviews
Beautiful! by Stephen, November 4, 2018
As with all Strike Products, this little picatinney rail mount is a beauty. I have three of these (Red, FDE and Black). They are worth the small amount of change and come in handy so it is worth stocking up. I own a lot of Strike products and am very...
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Product Info for Strike Industries AR Platforms R.EX Riser

The R.EX Riser is a low profile, lightweight riser for AR platforms. Set at the ideal height for co-witnessing while using the SI Reflex Exoskeleton mount with either A2 height, or Sidewinder sights (without spacer), the REX Riser is versatile and provides and solid mounting platform. While optimized for use with the R.EX Mount, the universal Picatinny pattern can be used with many other optics that can be mounted on picatinny sections.image

WARNING: California`s Proposition 65

Specifications for Strike Industries AR Platforms R.EX Riser:

Manufacturer: Strike Industries
Fabric/Material: 6061-T6 Aluminum/Steel
Red Dot Sights-Footprint: Not Applicable
Attachment Type: Picatinny
Optic Cut: Not Applicable
Length: 2.09 in
Height: 0.63 in
Weight: 2 oz
Condition: New
Gun Rail: Picatinny

Features of Strike Industries AR Platforms R.EX Riser

  • Low profile rail riser
  • Lightweight, 2 0z total installed co-witness height.
  • Co-witness with A2 or Sidewinder Sight using R.EX Mount
  • 3 picatinny slot sections

Package Contents:

  • Strike Industries AR Platforms R.EX Riser
  • 1X Riser Base
  • 1X M5X30Mm Cap Head Hex Screw
  • 2X10X3X.48Mm Spring
  • 1X Clamp
  • 1X Spacer
  • 1X Riser Rail
  • 4X M3X6Mm Button Head Hex Screw

Strike Industries AR Platforms R.EX Riser Orderable Models

List of Orderable Models

  • Strike Industries AR Platforms R.EX Riser, Low Profile, Black, One Size, SI-REX-RISER-BK , MPN: SI-REX-RISER-BK , UPC: 708747546972 , Code: 3Q-RMT-REXR-SI-REX-RISER-BK
  • Strike Industries AR Platforms R.EX Riser, Low Profile, FDE, One Size, SI-REX-RISER-FDE , MPN: SI-REX-RISER-FDE , UPC: 708747547832 , Code: 3Q-RMT-REXR-SI-REX-RISER-FDE
  • Strike Industries AR Platforms R.EX Riser, Low Profile, Red, One Size, SI-REX-RISER-RED , MPN: SI-REX-RISER-RED , UPC: 708747547849 , Code: 3Q-RMT-REXR-SI-REX-RISER-RED
  • Strike Industries AR Platforms R.EX Riser, Low Profile, Blue, One Size, SI-REX-RISER-BLU , MPN: SI-REX-RISER-BLU , UPC: 708747547825 , Code: 3Q-RMT-REXR-SI-REX-RISER-BLU

Strike Industries AR Platforms R.EX Riser Unavailable & Discontinued Models

List of Unorderable Models

  • USED, Strike Industries R.EX Riser - Low Profile, Lightweight Riser for AR Platforms, Black, One Size, SI-REX-RISER-BK , MPN: SI-REX-RISER-BK-EDEMO , Code: 3Q-RMT-REXR-SI-REX-RISER-BK-EDEMO-IN-B
  • USED, Strike Industries R.EX Riser - Low Profile, Lightweight Riser for AR Platforms, FDE, One Size, SI-REX-RISER-FDE , MPN: SI-REX-RISER-FDE-EDEMO , Code: 3Q-RMT-REXR-SI-REX-RISER-FDE-EDEMO-DF-C
  • USED Strike Industries R.EX Riser - Low Profile, Lightweight Riser for AR Platforms, Black, One Size, SI-REX-RISER-BK, EDEMO2, Used, Condition Fair , MPN: SI-REX-RISER-BK-EDEMO2 , Code: 3Q-RMT-REXR-SI-REX-RISER-BK-EDEMO2
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Last updated 2026-08-06 UTC.