Bcm Orat52513 A/T Optic Riser 525-13 Black Anodized 13 Slots

The BCM A/T Optic Riser 525-13 is a Picatinny-mounted platform riser designed to raise your optic's sight line for improved ergonomics and situational awareness on modern tactical AR platforms. If you run night vision, thermal, or need better cheek weld and target acquisition with magnified optics, this riser solves the common problem of optics sitting too low on a standard upper receiver—especially when layered with additional gear or PPE systems.

Measuring approximately 5.75 inches long, the A/T Riser spans the full length of your upper receiver and provides 13 recoil slots (14 lugs total), giving you one additional slot compared to a standard upper for flexible sight stack configuration. The riser lifts your optic centerline by 0.525 inches—enough to raise typical lower-third co-witness optics to around 2.16 inches and absolute co-witness setups to approximately 1.93 inches. That extra clearance makes a real difference when you're mounting magnifiers, night vision modules, or thermal systems and still need usable iron sights.

Black anodized finish handles the abuse of hard-use training and deployment environments. Mount any combination of combat sights, magnifiers, NVG, or thermal optics—the platform is agnostic and built around close-to-intermediate range applications where sight alignment and shooter comfort directly affect hits. This is purpose-built hardware for operators who need flexibility, not compromise.

Key Features

• Raises optic centerline 0.525 inches for improved sight picture with night vision and thermal systems
• 13 recoil slots (14 lugs) for maximum mounting flexibility and component spacing
• Spans full upper receiver length at approximately 5.75 inches
• Picatinny interface compatible with any standard optic mount
• Black anodized finish for corrosion resistance and durability
• Designed for close-to-intermediate range tactical and training use

Specifications

Frequently Asked Questions

What optics and magnifiers work with this riser?

The A/T Riser accepts any optic, magnifier, or accessory with a standard Picatinny (rail) interface. You can mix and match sights, night vision, thermal, and magnifiers—the 13 recoil slots give you spacing flexibility for complex sight stacks.

How much does this riser raise my optic?

The riser lifts your optic centerline by 0.525 inches. This raises typical lower-third co-witness optics to approximately 2.16 inches and absolute co-witness optics to approximately 1.93 inches—creating enough clearance to use the optic properly with night vision or other head-mounted systems.

Will this fit my AR upper receiver?

The A/T Riser is approximately 5.75 inches long and spans the full length of a standard AR upper receiver. It mounts via Picatinny and has 13 recoil slots, providing one more slot than most upper receivers for component positioning.

Is this riser good for long-range shooting?

The BCM A/T Riser is optimized for close-to-intermediate range applications and tactical use cases where night vision, thermal, or multiple optics/magnifiers are part of your setup. For precision long-range work, your needs may differ—consult the specifications for your intended use.