This will only work on a SIG 556 rifle or pistol. Replaces your existing SIG 556 flip front sight.
Height compatible with Mil-Spec rear AR15 standard sight. (IT IS NOT COMPATABLE WITH YOUR ORIGINAL SIG556 REAR FLIP UP SIGHT)
Uses standard AR15 front sight post.
Locking detent holds sight in deployed position.
Machined from 6061 aluminum and hard coat anodized.
(IT IS NOT COMPATABLE WITH YOUR ORIGINAL SIG556 REAR FLIP UP SIGHT). You must use a standard AR15 rear sight with this front sight.