Daniel Defense Rock & Lock Fixed Front/Rear Sight Combo 19-088-09116 (also known as the Daniel Defense AR-15 Iron Sight Set with Rock & Lock® technology).
This is a premium fixed (non-folding) iron sight set designed as a reliable backup or co-witness option for AR-15 platforms, especially when running red dot or reflex optics. It consists of the A1.5 Fixed Rear Sight and a Rail-Mounted Fixed Front Sight. The set mounts securely to any MIL-STD-1913 Picatinny rail using Daniel Defense’s patented Rock & Lock® attachment system for a rock-solid, repeatable lockup with minimal tools.
Key Features & Specs
- Rear Sight: A1.5 fixed rear sight with dual apertures (large “ghost ring” for fast acquisition and small aperture for precision). Windage adjustable via a side wheel. Optimized as a backup for optics.
- Front Sight: Rail-mounted fixed front sight with elevation-adjustable post. Low-profile and snag-free design allows mounting compact weapon lights (e.g., SureFire X300, Streamlight TLR-1) forward of the sight on the handguard.
- Construction: Machined from 6061-T6 aircraft-grade aluminum with MIL-SPEC Type III hardcoat anodized finish (matte black) for durability and corrosion resistance.
- Mounting: Patented Rock & Lock® technology provides quick, secure attachment to Picatinny rails without traditional screws that can loosen. One-piece design for simplicity and strength.
- Weight: 2.8 oz (combined set) — extremely lightweight for fixed sights.
- Dimensions: Compact profile (rear sight ~1.3" height; overall low and unobtrusive).
- Additional: Made in the USA. Provides a lifetime of reliable service as backup sights or primary iron sights. Co-witnesses well with many red dots.
This combo is ideal for shooters who want fixed, bomb-proof backup sights that won’t flip up/down or add unnecessary bulk/weight. The Rock & Lock system ensures they stay zeroed and secure even under heavy recoil or rough handling. The front sight’s placement leaves room for lights, while the A1.5 rear offers fast transitions between optics and irons.
Who It's For
- AR-15 builders running red dots, holographic sights, or low-power variables who need reliable fixed backups.
- Tactical, home defense, or competition shooters preferring fixed sights over folding models.
- Users who value lightweight, snag-free design and Daniel Defense’s quality machining.
