This jig will aid you in drilling out the barrel & gas block for a taper pin. For those who want absolutes, pinning a low profile gas block will insure your piece of mind. The jig was designed for the VLTOR but will fit many low profile gas blocks.
- #31 HSS Drill Bit
- 2/0 Taper Reamer, Spiral, HSS or .1247 Dowel Pin Reamer