Proto Barrel Backs are manufactured with premium 6061-T6 high-grade aluminum and honed to .690 and 8 micron finish.Change up color and style with a new Proto barrel back.
| Manufacturer |
Proto |
| Barrel Type |
No |
| Supported Marker |
No |
| Color |
Silver |
| Bore Size |
No |
| Barrel Length |
No |