- AR-15 6.8mm Breech Rod Guide
- Made from Delrin and Anodized Aluminum
- For Use with .22 caliber J. Dewey Cleaning Rods
- Will Also Fit 6.5 Grendel
- Attn: 6.5 Grendel shooters. The rim diameter on that cartridge is slightly larger than the 6.8mm cartridge. By moving the larger o-ring into the first slot it will increase the outside diameter at the front of the guide and provide a better seal in the chamber on the 6.5 Grendel.