IMI Defense 45° Offset Canted Flip-Up Iron Sights — Black, Polymer, Front & Rear Backup Set

IMI Defense 45° Offset Canted Flip-Up Iron Sights are a lightweight, polymer front-and-rear backup sight set that mounts to Picatinny/STANAG rails for fast secondary aiming without blocking your main optic.

These 45-degree canted flip-up sights provide a low-profile backup solution that stays out of the way of your primary optic while enabling quick transitions to iron sights by canting the rifle. Constructed from high-impact, fiber-reinforced polymer, the set pairs durable materials with minimal weight—each sight weighs less than an ounce—while delivering repeatable zero and tactile detents for secure up/down positions.

How do these 45° offset sights let me switch to backup aiming quickly?

Because the sights are mounted at a 45-degree cant, you can bring the rifle to your shooting position and roll the weapon to the side to look through the backup sights without removing or moving the main optic. The folding design keeps the primary sight picture clear until you need the irons.

• 45° canted installation for rapid side-roll target acquisition
• Front post usable even when folded, providing a minimal aiming option
• Low-profile when stowed to avoid obstructing magnified optics

What adjustments and precision features does the set offer?

The rear sight has two aperture sizes and ambidextrous windage adjustment with 0.5 MOA clicks for fine lateral zeroing. The front sight uses an indexed elevation drum that offers 1.3 MOA per click increments for consistent vertical adjustments.

• Rear: dual apertures and 0.5 MOA per-click windage
• Front: indexed elevation drum with 1.3 MOA clicks
• Maintains repeatable zero after stowing and redeploying

How durable and reliable are these polymer flip-up sights in the field?

Manufactured from fiber-reinforced polymer, the sights balance toughness and weight savings for everyday carry and rugged use. They use a non-spring-loaded manual flip design and positive detent locking to reduce parts and provide a secure locked position both up and down.

• Fiber-reinforced polymer construction for impact resistance and low mass
• Manual flip-up (non-spring) deployment reduces moving-part failures
• Positive detent lock ensures stable retention and repeatable positioning

How do I mount and maintain these sights to avoid damage?

These sights fit Mil-Spec Picatinny (1913) and STANAG 4694 rails. They are shipped intentionally stiff to ensure a no-wiggle fit; sliding them onto the rail from the rear and using light oil can ease initial deployment. Avoid overtightening mounting screws and use the recommended torque to prevent thread damage.

• Fits Mil-Spec 1913 Picatinny and STANAG 4694 rails
• Recommended screw torque: 1.2 N·m (≈22.5 in·lbs) to protect threads
• Install from rear of rail for easiest initial fit; a drop of oil can help

Who is this for? These IMI Defense 45° offset flip-up sights are intended for shooters who rely on a primary optic but want a dependable, lightweight backup system for close-quarters engagements or emergency use. They suit rifle owners running Picatinny/STANAG rails who need unobstructed optics, minimal added weight, and precise adjustment capability—operators, competition shooters, and hunters seeking a low-profile backup option will find them especially useful.