The Strike Industries Polymer Backup Sights, Folding, Black, AR-15 (brand part no. SPBUS) is a low-profile folding backup sight set molded from SI Polymer Extreme with a steel mounting tab and insert, giving dual rear apertures and a tool-free front elevation adjustment.

Key Specifications

• Both sights fold folding flat and low when not in use
• Molded from SI Polymer Extreme with a steel mounting tab and insert
• The rear sight offers dual apertures at 4.70mm for low light and 1.75mm for greater accuracy
• Built with no internal spring so the sights won’t deploy accidentally
• Front sight elevation adjusts tool-free
• Mounts to any standard Picatinny rail in minutes

Frequently Asked Questions

Do these sights need to be used together? Yes, since this set sits slightly taller than a standard A2 sight, it’s designed and optimized to be paired with its own matching front and rear set.

Can these sights deploy accidentally? No, there’s no internal spring, so they stay down until manually flipped up.

Buy the Strike Industries Polymer Backup Sights, Folding, Black, AR-15

Order the Strike Industries Polymer Backup Sights, Folding, Black, AR-15 from our catalog, or browse more rifle accessories and parts at Schaefer Defense. Ships fast from our Lubbock, Texas gun shop.