
Availability: In Stock
The Yankee Hill Machine YHM-230 gas block riser is a picatinny-mounted accessory that solves a common AR-15 build challenge: getting your front sight into the same optical plane as your optic. If you're running a YHM railed gas block and want to co-witness with a same-plane front sight system, this riser bridges the height gap without requiring a complete gas block swap. It's straightforward hardware that lets you maintain sight redundancy on a modern, rail-equipped setup.
Built from aircraft-grade aluminum and hardcoat anodized to military spec, the YHM-230 is engineered to handle the rigors of the range and field. Its matte black finish is durable and won't glint in sunlight—details that matter whether you're training hard or hunting. The compact 2.0-inch length keeps your front sight positioned logically along the rail without excess bulk, and at just 1.344 ounces, it won't throw off your rifle's balance or add meaningful weight to your upper receiver.
This is a demo/used unit, so you're getting YHM quality at a value. If you're building or upgrading an AR with a YHM gas block and want a lower-1/3 or absolute co-witness setup, this riser is the direct solution—no adapters or workarounds needed.
| Material | Aircraft-grade aluminum |
| Finish | Hardcoat anodized matte black (military spec) |
| Mount Type | Picatinny rail |
| Length | 2.0 inches |
| Weight | 1.344 oz |
| Condition | Demo/used |
Yes—this is designed to mount directly to any YHM railed gas block via picatinny attachment. Make sure your gas block has a full-length top rail.
The YHM-230 is engineered for same-plane front sight systems, particularly YHM's Q.D.S. lineup, though it will accept any picatinny-mounted front sight compatible with its height and rail format.
Yes—the riser's purpose is to position your front sight in the same optical plane as your mounted optic, enabling co-witness for sight redundancy. The exact co-witness height (lower-1/3, absolute, etc.) depends on your optic mount and sight choice.
This is a demo/used item. It has been test-fitted or used but remains fully functional. Check product images for condition details or contact us for specifics.
SKU: DEMO142076580 • Weight: 1oz





Availability: In Stock
The Yankee Hill Machine YHM-230 gas block riser is a picatinny-mounted accessory that solves a common AR-15 build challenge: getting your front sight into the same optical plane as your optic. If you're running a YHM railed gas block and want to co-witness with a same-plane front sight system, this riser bridges the height gap without requiring a complete gas block swap. It's straightforward hardware that lets you maintain sight redundancy on a modern, rail-equipped setup.
Built from aircraft-grade aluminum and hardcoat anodized to military spec, the YHM-230 is engineered to handle the rigors of the range and field. Its matte black finish is durable and won't glint in sunlight—details that matter whether you're training hard or hunting. The compact 2.0-inch length keeps your front sight positioned logically along the rail without excess bulk, and at just 1.344 ounces, it won't throw off your rifle's balance or add meaningful weight to your upper receiver.
This is a demo/used unit, so you're getting YHM quality at a value. If you're building or upgrading an AR with a YHM gas block and want a lower-1/3 or absolute co-witness setup, this riser is the direct solution—no adapters or workarounds needed.
| Material | Aircraft-grade aluminum |
| Finish | Hardcoat anodized matte black (military spec) |
| Mount Type | Picatinny rail |
| Length | 2.0 inches |
| Weight | 1.344 oz |
| Condition | Demo/used |
Yes—this is designed to mount directly to any YHM railed gas block via picatinny attachment. Make sure your gas block has a full-length top rail.
The YHM-230 is engineered for same-plane front sight systems, particularly YHM's Q.D.S. lineup, though it will accept any picatinny-mounted front sight compatible with its height and rail format.
Yes—the riser's purpose is to position your front sight in the same optical plane as your mounted optic, enabling co-witness for sight redundancy. The exact co-witness height (lower-1/3, absolute, etc.) depends on your optic mount and sight choice.
This is a demo/used item. It has been test-fitted or used but remains fully functional. Check product images for condition details or contact us for specifics.
SKU: DEMO142076580 • Weight: 1oz