Luth-AR BT-01H Helical 1-Piece Gas Ring .223/5.56 Silver AR-15

The Luth-AR BT-01H Helical 1-Piece Gas Ring is a direct replacement for the standard three-piece gas ring stack found on an AR-15 bolt. Machined as a single all-metal helical ring, the BT-01H is designed for 223 Remington and 5.56x45mm NATO AR-15 bolts and provides a more consistent seal between the bolt body and the gas tube during operation, improving the efficiency and reliability of the direct-impingement gas system.

Traditional mil-spec AR-15 bolts use three separate gas rings that must be carefully gapped and seated during installation. Over time those rings can stick, gap unevenly, or wear out, leading to gas leaks, short cycling, or fouling in the receiver. The Luth-AR BT-01H's single-piece helical design eliminates ring alignment issues, holds even tension against the gas tube wall, and installs in seconds on any standard AR-15 bolt. The silver finish is a natural all-metal appearance.

Whether you are assembling a new AR-15 upper, refreshing a duty bolt, or troubleshooting cycling issues, the BT-01H offers a straightforward drop-in upgrade. One gas ring is included.