Sprinco USA AR-15 Bolt Gas Rings - 9 Count

These Sprinco Gas Rings are made to Mil-Spec standards (per MIL 8448511) and are US made.  Sold as a 9-Pack, with one order you'll be able to service up to three bolts as needed.

Gas rings are a wear item and can experience increased wear from carriers that are finished in harder surface treatments, such as Black Nitride or Titanium Nitride PVD coatings.