It's a sight adjustment tool.No complaints so far, spends most of it's time in my shooting bag.
NcSTAR AR-15 A1/A2 Front Sight Combo Tool
This is quite simply a simple M4/16/AR15 front sight post adjustment tool for A1/A2 style front sight posts. 4-Prongs on one end for A2 and M4 Style Front Sights and 5-Prong on the other for A1 style front sights.
- Simplifies front site adjustment for elevation
- Blackened steel construction
- Dimensions: 2.2" long
- Weight: 23g
- (1) Front site tool
- AR front sites
Use the prongs to depress the front site detent while you turn
Manufacturer's model number: TARFSCT