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Mfg Item #: BCYBC41284
Birchwood Casey MSR Chamber Brushes helps remove copper, carbon and lead fouling form rifle chambers. Thread size 8-32. Bronze bristles scrub the chamber, neck and shoulder of a MSR. The steel bristles at the base scrub the star chamber of the locking lugs on a MSR.
| Caliber | 5.56 NATO |
|---|