Scalarworks Ar-15 Peak/01 Fixed Iron Front Sight Black
The Scalarworks AR-15 Peak/01 fixed iron front sight is a modern take on the classic backup sight—purpose-built for the realities of today's carbines rather than the rifles of decades past. Where older A2-pattern sights were designed around a 20-inch sight radius, the Peak front sight is optimized for the 15-inch geometry that defines modern AR-15 carbines. That's a meaningful difference: it means sharper sight picture, faster target acquisition, and genuinely usable iron sights when your primary optic fails or isn't available.
Scalarworks engineered the Peak with details that shooters actually care about. The front post is a slim 1.35mm wide—the correct proportion for its intended sight radius—with a flat face that eliminates the hot-spot glare common to rounded posts. Elevation adjustment is manual, offering precise 1/2 MOA click increments for zeroing at distance. The sight sits 36mm above the rail, positioning it perfectly as a co-witness backup behind optics mounted on a Scalarworks Leap mount, so you're never truly without aiming capability. Hard-use materials throughout: 7075-T6 aluminum for the body (significantly stronger than commodity 6061), paired with 4140H steel hardware finished in black nitride for corrosion resistance and durability in field conditions.
This is a front sight that works. If you're building a duty or hunting carbine with real iron sight capability—not just a placeholder until optics go on—the Peak delivers the sight radius, precision, and construction quality that separated professional work from amateur setups.
Key Features
- Fixed front sight optimized for AR-15 carbines with 15-inch sight radius
- 1.35mm post width sized for proper sight picture on modern carbine geometry
- Flat-face post eliminates glare and highlight bias
- Manual elevation adjustment in 1/2 MOA increments
- 36mm height over rail for co-witness backup behind Aimpoint optics on Scalarworks Leap mounts
- 7075-T6 aluminum construction for superior strength
- 4140H steel hardware with black nitride finish for corrosion resistance
- Black Mil-A-8625 Type III hardcoat anodized finish
Specifications
| Height Over Rail | 36mm (1.42") |
| Front Post Width | 1.35mm |
| Rear Aperture Options | 1.78mm (.07") and 5.08mm (.20") |
| Elevation Adjustment | Manual, 1/2 MOA clicks |
| Designed Sight Radius | 15 inches |
| Material | 7075-T6 aluminum (body); 4140H steel hardware (black nitride finish) |
| Finish | Black Mil-A-8625 Type III hardcoat anodized |
| Configuration | Fixed front sight |
Frequently Asked Questions
Will the Scalarworks Peak front sight co-witness with my red dot?
Yes. The Peak sits 36mm above the rail, making it an ideal backup sight to run beneath an Aimpoint optic mounted on a Scalarworks Leap mount. That setup gives you true backup capability—if your primary optic fails, you have functional iron sights ready to go.
How is the Scalarworks Peak different from standard A2 iron sights?
The Peak is designed around the 15-inch sight radius standard on modern AR-15 carbines, whereas A2 sights were engineered for the M16A2's 20-inch radius. That difference translates to a properly proportioned front post, sharper sight picture, and faster target engagement on the rifles most shooters actually own. The flat-face post also eliminates glare and distortion caused by the concave geometry of older designs.
Is this a front or rear sight?
This is the fixed front sight. Scalarworks also produces a rear sight for a complete Peak set, but this product is the front sight only.
What material is the Peak made from?
The body is machined from 7075-T6 aluminum, which is significantly stronger than standard 6061 alloy. Hardware is 4140H steel with a black nitride finish for durability and corrosion resistance. The entire assembly is finished in black Mil-A-8625 Type III hardcoat anodized coating.

