Shop › LUTH AR HELICAL 1 PIECE GAS RING LUTH AR HELICAL 1 PIECE GAS RING $3.62 Luth-AR Helical 1 Piece Gas Ring, .223/5.56 BT-01H Quantity: Add To Cart Added! Luth-AR Helical 1 Piece Gas Ring, .223/5.56 BT-01H