1.Quick Detachable Low Profile Front Sight Tower
2.Complete with A2 Square Post Assembly to Fit all
3.Picatinny/Weaver-style Rails, Thumb Nut with Locking Retention
4.Designed to Use with Handguard Rails or High Profile Gas Block
5.Precision Elevation Adjustments to Enhance Shooting Accuracy
6.Low Profile Removable Front Sight Tower Complete with A2 Square Post Assembly for Installation on Picatinny Rail Level with Flat Top