Bobro Engineering Double Decker Optic Riser Mount
Bobro Engineering
$164.99
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Bobro Engineering
Bobro Engineering Double Decker Optic Riser Mount
The Bobro Engineering Double Decker Riser is a precision-machined rail height solution engineered for AR-15 and M16 platforms, delivering a reliable 5/8" elevation boost without adding unnecessary bulk or sacrificing structural integrity.
- Raises Mil-Std 1913 Picatinny rail height by a precise 5/8" for optimal optic positioning
- Machined from aircraft-grade 6061-T6 aluminum for a superior strength-to-weight ratio
- Weighs just 3.3 ounces, keeping your AR-15 build light and maneuverable
- Grade 8 fasteners ensure a rock-solid, zero-movement mount under hard use
- Cantilevered end with tapered reinforcement rib eliminates flex in demanding conditions
- Bottom clamp interfaces with 10 cross slots, preserving compatibility with backup iron sights
Who This Is For
The Bobro Double Decker Riser is ideal for AR-15 and M16 shooters who need to raise their optic height for a more natural cheek weld, co-witness iron sights, or accommodate larger objective lenses. Whether you're building a precision rifle, a duty carbine, or a competition AR, this riser gives you a repeatable, wobble-free platform that holds zero shot after shot — making it a smart upgrade for both serious hobbyists and professional users who demand dependable performance from every component.
Specifications
| Brand | Bobro Engineering |
|---|---|
| Compatible Platform | AR-15 / M16 (Mil-Std 1913 Picatinny Rail) |
| Rail Height Increase | 5/8" |
| Material | 6061-T6 Aluminum |
| Fasteners | Grade 8 |
| Weight | 3.3 oz |
| Cross Slot Interface | 10 Cross Slots |
| BUIS Compatible | Yes |
| Finish | Matte Black Anodized |
Frequently Asked Questions
Will the Bobro Double Decker Riser work with my existing optic mount?
Yes — the Double Decker Riser is designed to accept any standard Mil-Std 1913 Picatinny-compatible optic mount on its top rail, just as you would mount directly to your upper receiver's flat-top rail. It adds 5/8" of additional height, so confirm that this elevation is appropriate for your specific optic, mount height, and desired cheek weld before purchasing.
Can I still use backup iron sights (BUIS) with this riser installed?
Absolutely. The bottom clamp of the Double Decker Riser interfaces across 10 cross slots on the host rail, and its design preserves enough forward and rear rail real estate to mount folding or fixed backup iron sights. This makes it especially useful for builds where co-witnessing or a redundant sighting system is a priority.
How does the Bobro Double Decker Riser hold zero under recoil?
Bobro Engineering built this riser with rigidity as a primary concern. The cantilevered design features a tapered reinforcement rib that prevents any flex or movement, while Grade 8 fasteners clamp the unit firmly to the host rail. Combined with precision machining from 6061-T6 aluminum, the riser delivers a consistently stable platform that maintains zero even under sustained fire or hard handling.
