Luth-AR BT-01-30P Bolt Gas Rings 223 Rem/5.56mm AR-15 30-Pack Silver

The Luth-AR BT-01-30P is a 30-pack of replacement bolt gas rings for 223 Rem / 5.56mm AR-15 rifles. Gas rings are the split rings that ride on the body of the bolt and seal against the inside of the bolt carrier; they meter how much propellant gas vents during the firing cycle, which is what drives the carrier back to extract, eject, and chamber the next round.

Luth-AR builds these rings as direct-fit service replacements for worn or damaged factory rings on standard AR-15 bolts. The 30-piece bulk pack gives armorers, gunsmiths, and at-home builders a generous supply for fleet maintenance, bolt rebuilds, and bench stock so a worn set can be swapped out without waiting on a small-parts order. Each ring carries a clean silver metallic finish and drops onto any standard AR-15 bolt chambered in 223 Remington or 5.56mm.

New condition, factory-packaged by Luth-AR.