HIVIZ ARN21 Folding AR Backup Sight Set with Tritium Front Post – Picatinny Rail Mount

Upgrade your AR-15 with the HIVIZ ARN21 Folding AR Backup Sight Set, a complete BUIS solution combining a tritium-illuminated front sight post with a dual-aperture adjustable rear sight. Designed for Picatinny rail-equipped rifles, this set delivers reliable target acquisition in low-light conditions without batteries or electronics — just dependable tritium glow when you need it most.

The folding design keeps your optics sight picture clear when primary optics are in use, then deploys instantly when you need a proven iron sight backup. Both elevation and windage are fully adjustable, and the interchangeable front sight post system lets you customize your setup. With red and green tritium options and rugged construction built for AR-platform rifles, the HIVIZ ARN21 is a smart, field-ready upgrade for serious shooters.

**Key Features:**
– Complete folding BUIS set — front and rear sights included
– Vertical tritium front sight post for low-light visibility
– Dual-aperture rear sight for close and distance shooting
– Full elevation and windage adjustment
– Interchangeable front sight posts
– Fits standard Picatinny rails
– AR-15 compatible
– Dimensions: 1.35″ x 3.85″ x 6.60″

⚠️ **Shipping Restriction:** This product cannot be shipped directly to California.

Order online today at VanTon Arms and take advantage of our competitive pricing and fast nationwide shipping. Check availability now at vantonarms.com.