This aftermarket flip up rear sight for sale fits the Ruger AR-556® it is a low profile flip-up rear sight that upgrades your rifle. The super slim deigned flip up sight fits all Ruger AR-556 rifles equipped with Picatinny rails. The Low Profile Flip-Up Rear Sight features precision machining from aircraft grade aluminum with black anodized finish. The Rear Sight has a spring loaded positive lock design with side plunger release for positive flipping up and folding down that makes it fast and easy to compress the plunger to unlock and fold down the sight when not in use. The Robust posi-lock plunger coupled with spring-activated ball bearing guarantees zero retention. Complete with Dual Aiming Apertures Ideal for Moving Target Engagements and Limited Visibility or Normal Firing Situations. The Low Profile 3mm Locking Bolt and Mounting Deck Securely Attaches to any Picatinny Rail. Limited Lifetime Warranty.
Note We Suggest You Buy Matching Flip-up Front Sight On Same Level Plane Applications Item # R755.