The Yankee Hill Machine Co Picatinny gas block riser mount elevates your front sight line to match your optic's plane of reference. If you're running a YHM railed gas block and want to co-witness a same-plane front sight without costly custom work, this riser solves the height mismatch in one straightforward piece. It's especially useful for shooters building a rifle around YHM's Q.D.S. same-plane sight system or anyone who needs quick-detach front sight capability on a gas block platform.

Built from aircraft-grade aluminum and hardcoat anodized to military specification, this mount is tough enough for field duty and precise enough for the range. At 1.344 ounces, it adds minimal weight while delivering the solid lockup you need for repeatable sight picture. The 2.0-inch length is engineered to give you proper sight radius and sight-to-optic offset without obstructing your gas tube or handguard clearance.

This is the kind of no-nonsense accessory that separates a carefully built rifle from a jury-rigged one. Whether you're setting up a duty rifle, a 3-gun platform, or a hunting rig that demands backup iron sights, a quality riser eliminates compromises and keeps your sighting system reliable.

Key Features

• Aircraft-quality aluminum construction for strength and longevity
• Hardcoat anodized matte black finish to military specifications
• Picatinny-compatible interface fits standard railed gas blocks
• Designed for use with YHM Q.D.S. same-plane sight systems
• Minimal weight addition—1.344 ounces
• 2.0-inch length optimized for proper sight radius

Specifications

Frequently Asked Questions

What rifles or gas blocks does this riser work with?

This riser is designed for use on YHM railed gas blocks. It attaches via Picatinny interface, so it's compatible with any YHM gas block that features a railed top surface.

Will this work with the YHM Q.D.S. sight system?

Yes. This riser is specifically engineered to elevate your front sight for use with YHM's Q.D.S. same-plane sight system, allowing your irons to sit in the same optical plane as your optic.

How much height does the riser add?

The riser is 2.0 inches in length. The exact height gain will depend on where your gas block is mounted and the specific configuration of your build, but this dimension is optimized to work with YHM's sighting platform.

Is this a quick-detach mount?

This is a fixed riser mount. Quick-detach capability comes from your front sight system (such as the YHM Q.D.S. sights) that attaches to the riser's Picatinny rail.