- 17-4 PH H900
- Q Plan B Compatible
- Plan B Adapter Overrun approximately 0.020″
- 1/2-28 Threads 25 Degree Taper Compatible
- 5/8-24 Threads 25 Degree Taper Compatible
- H900 Wheat Finish
- Now with bigger nuts! 13/16″
- Shims Not Included, if you would like to specifically time this, shims will be required. Note: your barrel may require a shim if the manufacturer did not put a thread relief on it.