Strike Industries SI R.E.X. Riser FDE — Low-Profile Picatinny Riser

The Strike Industries SI R.E.X. Riser FDE is a low-profile Picatinny riser designed for AR-platform optics. It provides a co-witness height compatible with A2 or Sidewinder sights and is optimized for use with the SI Reflex Exoskeleton mount. Constructed from 6061-T6 aluminum and finished in flat dark earth anodize, the riser offers a lightweight, stable mounting platform. The riser features three Picatinny slot sections and a total length of 2.09".

Key Specifications

• The weight is 2.58 oz.
• The total length is 2.09".
• The material is 6061-T6 Aluminum.
• The finish is Flat Dark Earth Anodized.
• The mount height is 0.53" without spacer and 0.63" with spacer.
• The mount type is Picatinny Rail.
• The Picatinny section count is 3 slots.
• The product includes 1 piece.
• The riser is a Low Profile Picatinny Rail Riser.
• Medium strength Loctite is recommended and included.

Designed for a compact, unobtrusive sighting setup, the SI R.E.X. Riser FDE delivers a simple, repeatable mounting solution for optics that require a modest elevation for co-witnessing. Its lightweight construction and three-slot Picatinny section make it a practical choice for users seeking a durable riser that blends with Flat Dark Earth setups while maintaining reliable alignment with A2 or Sidewinder sights.