DISC Midwest Industries SIG 556 Folding Front Sight ‒ MI-556-FFS
- Compatible with: AR-15 rear sights
- Material: 6061 Aluminum
- Finish: Hard coat anodized
MI SIG 556 Folding Front Sight
Midwest Industries’ SIG 556 folding front sight mounts to SIG factory gas blocks and is also compatible with SIG 552 rifles equipped with AR15 height rear sights. It utilizes a standard A2 front sight post and the lock detent deploys in an upright position.