Faxon Firearms Magazine Marker Bands - Caliber Identification (Size: 300 BLK (Red)); 816341021099
Bands are bright, solid colors to help you keep them straight. Add them to your rifle to make an easy color combo to avoid catastrophic discharges. Bands are solid rubber, marked on one side (so you can label your load on the other!). Sold in packs of 10.